9=4(3k-4)7k

Simple and best practice solution for 9=4(3k-4)7k equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 9=4(3k-4)7k equation:


Simplifying
9 = 4(3k + -4) * 7k

Reorder the terms:
9 = 4(-4 + 3k) * 7k

Reorder the terms for easier multiplication:
9 = 4 * 7k(-4 + 3k)

Multiply 4 * 7
9 = 28k(-4 + 3k)
9 = (-4 * 28k + 3k * 28k)
9 = (-112k + 84k2)

Solving
9 = -112k + 84k2

Solving for variable 'k'.

Reorder the terms:
9 + 112k + -84k2 = -112k + 112k + 84k2 + -84k2

Combine like terms: -112k + 112k = 0
9 + 112k + -84k2 = 0 + 84k2 + -84k2
9 + 112k + -84k2 = 84k2 + -84k2

Combine like terms: 84k2 + -84k2 = 0
9 + 112k + -84k2 = 0

Begin completing the square.  Divide all terms by
-84 the coefficient of the squared term: 

Divide each side by '-84'.
-0.1071428571 + -1.333333333k + k2 = 0

Move the constant term to the right:

Add '0.1071428571' to each side of the equation.
-0.1071428571 + -1.333333333k + 0.1071428571 + k2 = 0 + 0.1071428571

Reorder the terms:
-0.1071428571 + 0.1071428571 + -1.333333333k + k2 = 0 + 0.1071428571

Combine like terms: -0.1071428571 + 0.1071428571 = 0.0000000000
0.0000000000 + -1.333333333k + k2 = 0 + 0.1071428571
-1.333333333k + k2 = 0 + 0.1071428571

Combine like terms: 0 + 0.1071428571 = 0.1071428571
-1.333333333k + k2 = 0.1071428571

The k term is -1.333333333k.  Take half its coefficient (-0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
-1.333333333k + 0.4444444442 + k2 = 0.1071428571 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333k + k2 = 0.1071428571 + 0.4444444442

Combine like terms: 0.1071428571 + 0.4444444442 = 0.5515873013
0.4444444442 + -1.333333333k + k2 = 0.5515873013

Factor a perfect square on the left side:
(k + -0.6666666665)(k + -0.6666666665) = 0.5515873013

Calculate the square root of the right side: 0.742689236

Break this problem into two subproblems by setting 
(k + -0.6666666665) equal to 0.742689236 and -0.742689236.

Subproblem 1

k + -0.6666666665 = 0.742689236 Simplifying k + -0.6666666665 = 0.742689236 Reorder the terms: -0.6666666665 + k = 0.742689236 Solving -0.6666666665 + k = 0.742689236 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + k = 0.742689236 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + k = 0.742689236 + 0.6666666665 k = 0.742689236 + 0.6666666665 Combine like terms: 0.742689236 + 0.6666666665 = 1.4093559025 k = 1.4093559025 Simplifying k = 1.4093559025

Subproblem 2

k + -0.6666666665 = -0.742689236 Simplifying k + -0.6666666665 = -0.742689236 Reorder the terms: -0.6666666665 + k = -0.742689236 Solving -0.6666666665 + k = -0.742689236 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + k = -0.742689236 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + k = -0.742689236 + 0.6666666665 k = -0.742689236 + 0.6666666665 Combine like terms: -0.742689236 + 0.6666666665 = -0.0760225695 k = -0.0760225695 Simplifying k = -0.0760225695

Solution

The solution to the problem is based on the solutions from the subproblems. k = {1.4093559025, -0.0760225695}

See similar equations:

| r/7=-0.1 | | 6r=4.2 | | 2/3(y-6)=1/3(3y-9) | | r-0.1=-0.8 | | 90-4Q=4Q | | -5+r=4.3 | | 4(3y+4)=12 | | M+S=44 | | M=1S-14 | | 12(2x+4/3) | | 4+3y+5=6y-5-2y | | S=-1M+44 | | 2x^2+18-12x=0 | | 41-30x=0 | | -4x-2y=6 | | 8x+2(x+5)=50 | | -6/8p=-3 | | 6x-60=3x-23 | | -3x+7y=-14y | | 4x+51-4x+31=90 | | 12=4/2b | | 17p+p=40-2u | | 12=4/2 | | 4x-5(0)=18 | | 4(0)-5y=18 | | 2/3a=2 | | Y=-16t^2+128t | | 4a+14=2a+50 | | 3/4w+4/3/16w+9=24-1/16w | | 15(-4)= | | (-7)(-2)-(5)(2)= | | [4+(-2)]3= |

Equations solver categories