9x-2x=21

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


Simplifying
9x + -2x = 21

Combine like terms: 9x + -2x = 7x
7x = 21

Solving
7x = 21

Solving for variable 'x'.

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

Divide each side by '7'.
x = 3

Simplifying
x = 3

See similar equations:

| 9a=20+4a | | 4x+1=2x | | 3a+2a=25 | | 2x+3y=5 | | 11x+3=2x-24 | | 9-2z=30+z | | 4y+12=16 | | 2e-12=7e+8 | | 10x^2+x= | | 4n-6=10n | | 3.8m+9=18 | | 7x^2+2x=0 | | 7(m-1)+20=5(m+3)-15 | | a+18=7a | | 35k^2-22k+7=4 | | X^2+x+3=x^2-10x+25 | | 2e=4e-16 | | 6x-7=11-3x | | 5(b-3)=7(b-2) | | 7k^2-6k+3=3 | | 3w+6=4w | | 11x-11=77 | | b^2+5b-35=3b | | 2(1)+y=-5 | | x^2-26x-27=0 | | 4y-1=5y+3 | | 2(2)+y=-5 | | -4k^2-8k-3=-3-5k^2 | | 4(2y+9)+7y=-24 | | 5r^2-44r+120=-30+11r | | n^2+8n=-15 | | X-(14+2x)=13+(2x-3) |

Equations solver categories