12+7x-21=-8(3-x)

Simple and best practice solution for 12+7x-21=-8(3-x) 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 12+7x-21=-8(3-x) equation:


Simplifying
12 + 7x + -21 = -8(3 + -1x)

Reorder the terms:
12 + -21 + 7x = -8(3 + -1x)

Combine like terms: 12 + -21 = -9
-9 + 7x = -8(3 + -1x)
-9 + 7x = (3 * -8 + -1x * -8)
-9 + 7x = (-24 + 8x)

Solving
-9 + 7x = -24 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-9 + 7x + -8x = -24 + 8x + -8x

Combine like terms: 7x + -8x = -1x
-9 + -1x = -24 + 8x + -8x

Combine like terms: 8x + -8x = 0
-9 + -1x = -24 + 0
-9 + -1x = -24

Add '9' to each side of the equation.
-9 + 9 + -1x = -24 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = -24 + 9
-1x = -24 + 9

Combine like terms: -24 + 9 = -15
-1x = -15

Divide each side by '-1'.
x = 15

Simplifying
x = 15

See similar equations:

| C=20m+.25x | | 20-3.5=x | | =log(67/y) | | log(67/y) | | (23x-6)/3=10 | | 5(2x-4)-6(x+4)-3(x-8)=2x-x-19 | | 5x^5+5=0 | | x*.30=657 | | x*.30=650 | | 4x-12/x=28 | | 10(0.4g+0.5g)=4g | | H=-15t^2+60+10 | | 14*(2*x+0.7*x)=(2450+200) | | 2*x+0.7*x=(2450+200) | | 2*x+1=-2 | | e^9-3x=1566 | | 1/2*15*80 | | Log[3](5x-7)-Log[3](x+2)=1 | | Log[3](5x-7)(x+2)=1 | | h(t)=10t^2+81t+4.5 | | (9x-2y)4= | | 3(3+4x)-8=85 | | 3x+16-13x=5x-60 | | 21+15=37 | | 5(10)+5=56 | | 2e^3x-1=11 | | g(x)=3x^2+4x+2 | | 6x+6x-5=7 | | h(t)=16t^2+79t+5 | | b/19-3b/19=10/19 | | X:1:4::3/4:32 | | 5x+y=70 |

Equations solver categories