3(7+x)=x-12

Simple and best practice solution for 3(7+x)=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 3(7+x)=x-12 equation:


Simplifying
3(7 + x) = x + -12
(7 * 3 + x * 3) = x + -12
(21 + 3x) = x + -12

Reorder the terms:
21 + 3x = -12 + x

Solving
21 + 3x = -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.
21 + 3x + -1x = -12 + x + -1x

Combine like terms: 3x + -1x = 2x
21 + 2x = -12 + x + -1x

Combine like terms: x + -1x = 0
21 + 2x = -12 + 0
21 + 2x = -12

Add '-21' to each side of the equation.
21 + -21 + 2x = -12 + -21

Combine like terms: 21 + -21 = 0
0 + 2x = -12 + -21
2x = -12 + -21

Combine like terms: -12 + -21 = -33
2x = -33

Divide each side by '2'.
x = -16.5

Simplifying
x = -16.5

See similar equations:

| -5y-25=20 | | x^2-111x-50=0 | | -5x+7.4=-27.6 | | 6x/3=5x/2 | | 0.75+2=4(0.5-2) | | 8x+4=3x-14 | | x*x=23+x | | x*x=23 | | 1.1x^2-2.1x-1=0 | | 1/(x-4)=0 | | 9x-11x=34 | | 3.5x=-112 | | -16+6=x+7 | | 1/3(t-2)+2/3t=2t+4/3 | | 3v^2+9v-30=0 | | 2m-4m-6=2 | | (-9+x)(5x-1)= | | 1/2(u-3)=2u-3/2 | | 2ln(x)-ln(3x+10)=0 | | 6x=3(x+4) | | -4(2+r)=12 | | -16+6=-10+7 | | 8x+9=4x+3 | | 2+9+x=8+3 | | X-2x=44 | | (3y+8)-(3y-7)= | | -12+x=40 | | xy*dx-(x^2+2y^2)*dy=0 | | 8/9+x=6/7 | | 5x-7=2(2x+2) | | 5z-7=2(2z+2) | | 9x+20+7x-6=142 |

Equations solver categories