-9-12-21-x=0

Simple and best practice solution for -9-12-21-x=0 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 -9-12-21-x=0 equation:


Simplifying
-9 + -12 + -21 + -1x = 0

Combine like terms: -9 + -12 = -21
-21 + -21 + -1x = 0

Combine like terms: -21 + -21 = -42
-42 + -1x = 0

Solving
-42 + -1x = 0

Solving for variable 'x'.

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

Add '42' to each side of the equation.
-42 + 42 + -1x = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -1x = 0 + 42
-1x = 0 + 42

Combine like terms: 0 + 42 = 42
-1x = 42

Divide each side by '-1'.
x = -42

Simplifying
x = -42

See similar equations:

| 3m+8=8+3m | | 8/13=x/65 | | 20a+10b+5c=100 | | 2f(3-2f)= | | (3/7)-(-1/2) | | 7+10p-5=8p+7-3p | | 4x+8=12x-16 | | 4y(2+3y)= | | 8/13=x65 | | y-15=45 | | 1/11=x/55 | | u=15v | | 5(2n-6)= | | 3g=g/3 | | 3p+14p=34 | | X/18=-12 | | 4x+5y=-69 | | 3x=5x+6y | | X^2=-6x-12 | | v^2+x=y | | 3(2x+4)=2(5x-3)+6 | | 4(x+3)=5(2-x) | | (n+5)(n-4/2)=5 | | 3(2x+5)=26 | | 5.6q-4.9-4.9q=-0.3q-5.5 | | 2x+14=4x-68 | | 7y=9y+6 | | 15-3N=9-1 | | 103.50/9=x28 | | (n+5)(n-4)=5 | | 3(2x-x)= | | n^2+n-15=0 |

Equations solver categories