4x+9=x-12

Simple and best practice solution for 4x+9=x-12 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 4x+9=x-12 equation:


Simplifying
4x + 9 = x + -12

Reorder the terms:
9 + 4x = x + -12

Reorder the terms:
9 + 4x = -12 + x

Solving
9 + 4x = -12 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
9 + 4x + -1x = -12 + x + -1x

Combine like terms: 4x + -1x = 3x
9 + 3x = -12 + x + -1x

Combine like terms: x + -1x = 0
9 + 3x = -12 + 0
9 + 3x = -12

Add '-9' to each side of the equation.
9 + -9 + 3x = -12 + -9

Combine like terms: 9 + -9 = 0
0 + 3x = -12 + -9
3x = -12 + -9

Combine like terms: -12 + -9 = -21
3x = -21

Divide each side by '3'.
x = -7

Simplifying
x = -7

See similar equations:

| -2x+3=-9-5x | | 3300=2008p | | -34=6n-4 | | 18+4(p-9)=6 | | 7-3x=-6x-17 | | -1=2x+3 | | 0.5+6.4=4.9-0.1m | | -4-2x=-18 | | 2008-1975=p | | -36+12x=20+10x | | -27+7x=10x | | -5y+5=-4(2y+4) | | 6-7=3s+5-9s | | 4x-3=-3 | | 3(3x-4)+5(2x+3)=-9 | | 200=7.5p | | -13=4n-7 | | -5x+5=-95-10x | | 2(1-2j)=4j+18 | | 6(4+5x)=114 | | 5g+9=-47-3g | | 4x-57=11x+41 | | 3k-7=8-2k | | 4a(a-2)-7a(a+3)= | | -15=4x+1 | | x+3y=7.5 | | 2m=Q+15 | | 49x^2-64=0 | | -3(x-y)-x(4-y)= | | 300=9p | | 3(r+2)+12-5(r-2)= | | 3r+2t=12 |

Equations solver categories