7x+21=9x-36

Simple and best practice solution for 7x+21=9x-36 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+21=9x-36 equation:


Simplifying
7x + 21 = 9x + -36

Reorder the terms:
21 + 7x = 9x + -36

Reorder the terms:
21 + 7x = -36 + 9x

Solving
21 + 7x = -36 + 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.
21 + 7x + -9x = -36 + 9x + -9x

Combine like terms: 7x + -9x = -2x
21 + -2x = -36 + 9x + -9x

Combine like terms: 9x + -9x = 0
21 + -2x = -36 + 0
21 + -2x = -36

Add '-21' to each side of the equation.
21 + -21 + -2x = -36 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = -36 + -21
-2x = -36 + -21

Combine like terms: -36 + -21 = -57
-2x = -57

Divide each side by '-2'.
x = 28.5

Simplifying
x = 28.5

See similar equations:

| 19m+m+23-3n= | | 89=(5x-7)+(14x+1) | | x+13+x+26=174 | | -110=18-8v | | 50+75h=350 | | K-34=64 | | 15x+45=27k^2-5k+45-3k | | 10x-15x=5x+20 | | 5(7x+17)=400 | | -1=-7c-8-7 | | 35.5/10/0 | | 4y+4=7y-14 | | 10=v(v-9) | | 52=u-19+12+17-5 | | 12+5w-4w=14 | | x+8=x+1 | | 15x+45=27k-5k+45 | | F(n)=n^2+6n+8 | | 10x+25(x-4)=425 | | X-2X+3X-4X+5X-1000=0 | | 35.5/10/2 | | (-2)=-1/2x-1 | | (8.8-4)/q=0.8 | | 5/12-3/20 | | 24=2a^2+18a+40 | | 252-12x= | | 1-4m^2=0 | | V+57=101 | | 1.8+0.3x=0.2x | | 2b+3b-7=22 | | 133=7r | | 7y-21=4y-8 |

Equations solver categories