12-4x-7x=21

Simple and best practice solution for 12-4x-7x=21 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 12-4x-7x=21 equation:


Simplifying
12 + -4x + -7x = 21

Combine like terms: -4x + -7x = -11x
12 + -11x = 21

Solving
12 + -11x = 21

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -11x = 21 + -12

Combine like terms: 12 + -12 = 0
0 + -11x = 21 + -12
-11x = 21 + -12

Combine like terms: 21 + -12 = 9
-11x = 9

Divide each side by '-11'.
x = -0.8181818182

Simplifying
x = -0.8181818182

See similar equations:

| 0.5(x-1.5)-0.66(x+5.33)=-1.066 | | 4-3y=36 | | 3m+300=c | | -11x=9 | | 2x^2-4x-xy+2y= | | z=3y+8x | | 5R-13=49 | | 5(m-100)+200=c | | 108/X=100 | | tan^3(x-(1/343)) | | 2(A+1)=9 | | 14x+4-17x=3x-16-4x | | 14x+4-17x=13x-16-4 | | 14x+4-17x=13x-16-4x | | 20s-28t+8u= | | 6m(m+3)=0 | | 3/2x-3=1/5-2x | | -3x-3(4+18)=162 | | 2a+1=-6 | | 10-h/2=7 | | 3i-4/5=-4 | | (2x+1)-(x+6)=(4x-13)-(2x-1) | | 2(360-y)-2y=80 | | (3x+8)=(2x+17) | | 2t^2=4t+3 | | x=19750+-0.25y | | 2x+0.5y=39500 | | 10logx=22 | | lx-3l+lx+1l=9 | | 4x^2-81y^6=0 | | 4x^2-13x+5+sqrt(3x+1)=0 | | -4(y+7)=-y-7 |

Equations solver categories