.07x+.01(70)=.05x(x+70)

Simple and best practice solution for .07x+.01(70)=.05x(x+70) 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 .07x+.01(70)=.05x(x+70) equation:


Simplifying
0.07x + 0.01(70) = 0.05x(x + 70)

Multiply 0.01 * 70
0.07x + 0.7 = 0.05x(x + 70)

Reorder the terms:
0.7 + 0.07x = 0.05x(x + 70)

Reorder the terms:
0.7 + 0.07x = 0.05x(70 + x)
0.7 + 0.07x = (70 * 0.05x + x * 0.05x)
0.7 + 0.07x = (3.5x + 0.05x2)

Solving
0.7 + 0.07x = 3.5x + 0.05x2

Solving for variable 'x'.

Combine like terms: 0.07x + -3.5x = -3.43x
0.7 + -3.43x + -0.05x2 = 3.5x + 0.05x2 + -3.5x + -0.05x2

Reorder the terms:
0.7 + -3.43x + -0.05x2 = 3.5x + -3.5x + 0.05x2 + -0.05x2

Combine like terms: 3.5x + -3.5x = 0.0
0.7 + -3.43x + -0.05x2 = 0.0 + 0.05x2 + -0.05x2
0.7 + -3.43x + -0.05x2 = 0.05x2 + -0.05x2

Combine like terms: 0.05x2 + -0.05x2 = 0.00
0.7 + -3.43x + -0.05x2 = 0.00

Begin completing the square.  Divide all terms by
-0.05 the coefficient of the squared term: 

Divide each side by '-0.05'.
-14 + 68.6x + x2 = 0

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + 68.6x + 14 + x2 = 0 + 14

Reorder the terms:
-14 + 14 + 68.6x + x2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 68.6x + x2 = 0 + 14
68.6x + x2 = 0 + 14

Combine like terms: 0 + 14 = 14
68.6x + x2 = 14

The x term is 68.6x.  Take half its coefficient (34.3).
Square it (1176.49) and add it to both sides.

Add '1176.49' to each side of the equation.
68.6x + 1176.49 + x2 = 14 + 1176.49

Reorder the terms:
1176.49 + 68.6x + x2 = 14 + 1176.49

Combine like terms: 14 + 1176.49 = 1190.49
1176.49 + 68.6x + x2 = 1190.49

Factor a perfect square on the left side:
(x + 34.3)(x + 34.3) = 1190.49

Calculate the square root of the right side: 34.503478086

Break this problem into two subproblems by setting 
(x + 34.3) equal to 34.503478086 and -34.503478086.

Subproblem 1

x + 34.3 = 34.503478086 Simplifying x + 34.3 = 34.503478086 Reorder the terms: 34.3 + x = 34.503478086 Solving 34.3 + x = 34.503478086 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-34.3' to each side of the equation. 34.3 + -34.3 + x = 34.503478086 + -34.3 Combine like terms: 34.3 + -34.3 = 0.0 0.0 + x = 34.503478086 + -34.3 x = 34.503478086 + -34.3 Combine like terms: 34.503478086 + -34.3 = 0.203478086 x = 0.203478086 Simplifying x = 0.203478086

Subproblem 2

x + 34.3 = -34.503478086 Simplifying x + 34.3 = -34.503478086 Reorder the terms: 34.3 + x = -34.503478086 Solving 34.3 + x = -34.503478086 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-34.3' to each side of the equation. 34.3 + -34.3 + x = -34.503478086 + -34.3 Combine like terms: 34.3 + -34.3 = 0.0 0.0 + x = -34.503478086 + -34.3 x = -34.503478086 + -34.3 Combine like terms: -34.503478086 + -34.3 = -68.803478086 x = -68.803478086 Simplifying x = -68.803478086

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.203478086, -68.803478086}

See similar equations:

| 3X-0.78=1.2+2X | | 2=6x+2y-2 | | 9y-27=-2+6 | | 1/7(3y+4)=2+1/5(y+2) | | 2y=4x+16 | | 7n+5=61 | | 15=6h | | 3x+10+14x=180 | | -11k=-33 | | 27y^4+42y^2=5 | | 0.05(x+70)=0.07x+0.05(70) | | 9x^2-41x-92=0 | | 6y=-60 | | N=E^3-6E^2+5E+12 | | 2x+19=3x | | 16x+25=6x+265 | | 18-t^2=0 | | 4n+8=32 | | 3x^3-5x^2+12x-20=0 | | 2x^2-6-x=0 | | 2(5c+2)-2c=3(2c+3)+7 | | 3y-15=8y-5 | | 218-3x=33x+18 | | -0.08y-12.42=-4.7 | | 11-7x=113-28x | | 3s^2-19s=14 | | 5r^2-31r=28 | | 4(2x-3)=-20 | | 6y+2x=8 | | 2(3x+5)=4x+10 | | 0.5m+17.6=5 | | -180=6r |

Equations solver categories