21x-9=11x-39

Simple and best practice solution for 21x-9=11x-39 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 21x-9=11x-39 equation:


Simplifying
21x + -9 = 11x + -39

Reorder the terms:
-9 + 21x = 11x + -39

Reorder the terms:
-9 + 21x = -39 + 11x

Solving
-9 + 21x = -39 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
-9 + 21x + -11x = -39 + 11x + -11x

Combine like terms: 21x + -11x = 10x
-9 + 10x = -39 + 11x + -11x

Combine like terms: 11x + -11x = 0
-9 + 10x = -39 + 0
-9 + 10x = -39

Add '9' to each side of the equation.
-9 + 9 + 10x = -39 + 9

Combine like terms: -9 + 9 = 0
0 + 10x = -39 + 9
10x = -39 + 9

Combine like terms: -39 + 9 = -30
10x = -30

Divide each side by '10'.
x = -3

Simplifying
x = -3

See similar equations:

| 7x^2+7x-385=7 | | -2n+3=7 | | F=28+6x-0.6x^2 | | x+.1x=550 | | 27-8u^3=0 | | 9.1m-5.2=56.4+1.4m | | logx^3=12 | | 3y-6+y+40=5y+40-3y | | 7y-4-2y+6= | | 81-u^4=0 | | 6q-(9q+8)=5-(5q-6) | | 7x+5=7(x-6) | | (7x-49)(12-2x)=0 | | 3x+(x+15)=170 | | 50.95=11x+6.95x | | X^2-9y^2-10x-36y=2 | | 16-v^4=0 | | 4.9-6.5g=-7.5g-2.2 | | 5(1-2x)=2(4-2x) | | 2(a-1)+4a=3a+2 | | X^2-9y^2-10x-36y-2=0 | | f(x)=-x^2+2x-7 | | 3+6r-1=7r+5-4r | | -7(-5-2p)=4p-5 | | 9+4(x-2)=6-12(x-5) | | 12xsquared-36x=0 | | -3/4b-19=12-7/4b | | -8x+12x-8x=-36 | | z^2-8z+16=64 | | 3(4.5-1.2v)=-8.3v+6.8+3.7v | | -y^4+16=0 | | 6a-6=36 |

Equations solver categories