7x-8=9x+20

Simple and best practice solution for 7x-8=9x+20 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 7x-8=9x+20 equation:


Simplifying
7x + -8 = 9x + 20

Reorder the terms:
-8 + 7x = 9x + 20

Reorder the terms:
-8 + 7x = 20 + 9x

Solving
-8 + 7x = 20 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-8 + 7x + -9x = 20 + 9x + -9x

Combine like terms: 7x + -9x = -2x
-8 + -2x = 20 + 9x + -9x

Combine like terms: 9x + -9x = 0
-8 + -2x = 20 + 0
-8 + -2x = 20

Add '8' to each side of the equation.
-8 + 8 + -2x = 20 + 8

Combine like terms: -8 + 8 = 0
0 + -2x = 20 + 8
-2x = 20 + 8

Combine like terms: 20 + 8 = 28
-2x = 28

Divide each side by '-2'.
x = -14

Simplifying
x = -14

See similar equations:

| 7y-3=3(y-9) | | 17=x+(-10) | | -5y+2(y-6)=-36 | | -1.6=p+2.2 | | -5u+8(u+4)=35 | | 2/3n-4=-92 | | -11=z/-2 | | 4x+31=-3x+4(1+4x) | | 3(w-2)-8w=-1 | | -7(6-5n)=-3(-5n+8)-2n | | -11/2/-2 | | -11=-2/2 | | -6+4n=2 | | -6(n+4)=2 | | -6(n+4)=3 | | -6n+4=2 | | 30b^2+b-20= | | 6u^2-19u+10= | | -2v+14v+3=8v+27 | | 8/7x-10y=4 | | 5/10=6/x | | 6=t+12 | | -15=-h | | 3x+3/6=2x-1 | | 0.5r+4=.75r-1.5 | | 0.5r+4=.75r-5.5 | | 1-6(3x+3)=-7x+38 | | 3m-7=-11-m | | 9m=3(7m+24) | | t+12.1=-5.1 | | -39+6k=-2(k+5)-5 | | 15(a-7)=-6-9 |

Equations solver categories