7x+3=6x(x-2)

Simple and best practice solution for 7x+3=6x(x-2) 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 7x+3=6x(x-2) equation:


Simplifying
7x + 3 = 6x(x + -2)

Reorder the terms:
3 + 7x = 6x(x + -2)

Reorder the terms:
3 + 7x = 6x(-2 + x)
3 + 7x = (-2 * 6x + x * 6x)
3 + 7x = (-12x + 6x2)

Solving
3 + 7x = -12x + 6x2

Solving for variable 'x'.

Combine like terms: 7x + 12x = 19x
3 + 19x + -6x2 = -12x + 6x2 + 12x + -6x2

Reorder the terms:
3 + 19x + -6x2 = -12x + 12x + 6x2 + -6x2

Combine like terms: -12x + 12x = 0
3 + 19x + -6x2 = 0 + 6x2 + -6x2
3 + 19x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
3 + 19x + -6x2 = 0

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
-0.5 + -3.166666667x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -3.166666667x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -3.166666667x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -3.166666667x + x2 = 0 + 0.5
-3.166666667x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-3.166666667x + x2 = 0.5

The x term is -3.166666667x.  Take half its coefficient (-1.583333334).
Square it (2.506944447) and add it to both sides.

Add '2.506944447' to each side of the equation.
-3.166666667x + 2.506944447 + x2 = 0.5 + 2.506944447

Reorder the terms:
2.506944447 + -3.166666667x + x2 = 0.5 + 2.506944447

Combine like terms: 0.5 + 2.506944447 = 3.006944447
2.506944447 + -3.166666667x + x2 = 3.006944447

Factor a perfect square on the left side:
(x + -1.583333334)(x + -1.583333334) = 3.006944447

Calculate the square root of the right side: 1.734054338

Break this problem into two subproblems by setting 
(x + -1.583333334) equal to 1.734054338 and -1.734054338.

Subproblem 1

x + -1.583333334 = 1.734054338 Simplifying x + -1.583333334 = 1.734054338 Reorder the terms: -1.583333334 + x = 1.734054338 Solving -1.583333334 + x = 1.734054338 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.583333334' to each side of the equation. -1.583333334 + 1.583333334 + x = 1.734054338 + 1.583333334 Combine like terms: -1.583333334 + 1.583333334 = 0.000000000 0.000000000 + x = 1.734054338 + 1.583333334 x = 1.734054338 + 1.583333334 Combine like terms: 1.734054338 + 1.583333334 = 3.317387672 x = 3.317387672 Simplifying x = 3.317387672

Subproblem 2

x + -1.583333334 = -1.734054338 Simplifying x + -1.583333334 = -1.734054338 Reorder the terms: -1.583333334 + x = -1.734054338 Solving -1.583333334 + x = -1.734054338 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.583333334' to each side of the equation. -1.583333334 + 1.583333334 + x = -1.734054338 + 1.583333334 Combine like terms: -1.583333334 + 1.583333334 = 0.000000000 0.000000000 + x = -1.734054338 + 1.583333334 x = -1.734054338 + 1.583333334 Combine like terms: -1.734054338 + 1.583333334 = -0.150721004 x = -0.150721004 Simplifying x = -0.150721004

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.317387672, -0.150721004}

See similar equations:

| 2.7z=16.2 | | -3(p+5)=3 | | 3/4x+9=3 | | -33+z=2 | | 120+16b=18b | | 6w-20=-4 | | 7+5x+2x=7 | | 6n-144=2n-32 | | 6t-8=2(2+1) | | (9x+17)=(15x-5) | | -9s=45 | | 2(-13+5)+4=-12 | | 2(2x-2)+x=3x-4 | | 2(x-4)+3x-2+2*2*2+3(4-x)-4x+10x-60=100 | | 8n-3=2n+2 | | 1.6x-1.5y=3.6 | | 3/2x-11=14 | | 4x-30=-(x-5) | | -4x+7=5(x-2) | | 3-(5-x)=27 | | k^2+30x+125=0 | | 8x+2x=180 | | 3g=2g-7 | | 29+6n=-7n-8(2+4n) | | 4x+3-m=3(m+1) | | -4(3x-2)-x=-11(x-1) | | 3x^2+bx+10=a(x+3)+c | | 0.3x+0.9=0.7x-0.3 | | 4m+3-m=3(m-1) | | -3(3x-2)-n=-11(x-1) | | 2y^2-14x+24=0 | | 0=3x^2-6x+15 |

Equations solver categories