12x-9=21+2x

Simple and best practice solution for 12x-9=21+2x 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 12x-9=21+2x equation:


Simplifying
12x + -9 = 21 + 2x

Reorder the terms:
-9 + 12x = 21 + 2x

Solving
-9 + 12x = 21 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-9 + 12x + -2x = 21 + 2x + -2x

Combine like terms: 12x + -2x = 10x
-9 + 10x = 21 + 2x + -2x

Combine like terms: 2x + -2x = 0
-9 + 10x = 21 + 0
-9 + 10x = 21

Add '9' to each side of the equation.
-9 + 9 + 10x = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 10x = 21 + 9
10x = 21 + 9

Combine like terms: 21 + 9 = 30
10x = 30

Divide each side by '10'.
x = 3

Simplifying
x = 3

See similar equations:

| x-4x-6x+8x=9+4 | | 21r^2-20r+18=0 | | -2x(x+1)=4 | | t(n)=4.5*1-8 | | 18+b=-14 | | -8p=48 | | -7(6+9m)-3m= | | 3n^2-14n-49=0 | | 5(3-2y)+4y=-6y | | 2.25x^2-8x+7=0 | | 1.8/0.02 | | ln(y-1)+ln(x+1)=2 | | 5n+3=7n-3 | | -3x(x+2)=2 | | 5x+3y=334 | | -4+(-6)-(-4)-(-7)= | | 2+1+x-6=0 | | 3n^2-14n-45=0 | | -76+45= | | -48+55= | | 81+(-90)= | | 6(x-4)=-4(x+1)+46 | | 2y^2=3y+7 | | -7(6+9m)-3= | | -50+-20= | | 3m^2-13m+8=0 | | -56+-4= | | 8(0.25+0.125y)-y=2 | | 4(x+2)=8(x-2)-4 | | 4(x-2)=-5(x+4)+45 | | -42-3= | | 6x^2-12x-8=10 |

Equations solver categories