12+9=8-4x

Simple and best practice solution for 12+9=8-4x 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+9=8-4x equation:


Simplifying
12 + 9 = 8 + -4x

Combine like terms: 12 + 9 = 21
21 = 8 + -4x

Solving
21 = 8 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
21 + 4x = 8 + -4x + 4x

Combine like terms: -4x + 4x = 0
21 + 4x = 8 + 0
21 + 4x = 8

Add '-21' to each side of the equation.
21 + -21 + 4x = 8 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 8 + -21
4x = 8 + -21

Combine like terms: 8 + -21 = -13
4x = -13

Divide each side by '4'.
x = -3.25

Simplifying
x = -3.25

See similar equations:

| 4x-14=8x-10 | | x^3-5x^2+5x+2=0 | | 63t^2-75t-52=0 | | 3-11x=9-5x | | x^3-5x^2+5x+2= | | c=.5x+10 | | -72=8n | | 9+7q=12+6q | | 100+20*5.25= | | 4x+2x-2=10 | | 461=6+7(1-8n) | | 8g+10=35+3 | | X=-14-4 | | 3(-4.5+-.5y)+4y=14 | | 84=-6k+36 | | (x-6)+130+(2x-12)=360 | | 8x-5x=27 | | 4.25x+64.60=10x | | 0=a^4-24 | | y=1x-2+1 | | 200v-500= | | 16p^2+7=71 | | 3f+2=1.80 | | 24+x=61 | | 4(2y-4)+8=5y-8 | | 14a-93=49-57s | | T+79=0 | | 5a+3-3y=-7 | | 12(3+2t)= | | 13-3p=-5(3+p) | | 8x-10y-9=0 | | 3a+8+a-9-20= |

Equations solver categories