2x+9=8x+21

Simple and best practice solution for 2x+9=8x+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 2x+9=8x+21 equation:


Simplifying
2x + 9 = 8x + 21

Reorder the terms:
9 + 2x = 8x + 21

Reorder the terms:
9 + 2x = 21 + 8x

Solving
9 + 2x = 21 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
9 + 2x + -8x = 21 + 8x + -8x

Combine like terms: 2x + -8x = -6x
9 + -6x = 21 + 8x + -8x

Combine like terms: 8x + -8x = 0
9 + -6x = 21 + 0
9 + -6x = 21

Add '-9' to each side of the equation.
9 + -9 + -6x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -6x = 21 + -9
-6x = 21 + -9

Combine like terms: 21 + -9 = 12
-6x = 12

Divide each side by '-6'.
x = -2

Simplifying
x = -2

See similar equations:

| 4/3(x-4) | | 45b+32-43b=34 | | y=4/3(x-4) | | x^2-3x=3/4 | | 120-3y=x | | 3x+(38-3x)2=52 | | y=-8+-7x | | y=ax+h | | -121/22 | | 7a-17=4c+1 | | -2x(x-3)=4x-3 | | (12r+12)=(24r-24) | | 3pi-(-12pi)= | | -45*(-1/5) | | 3pie-(-12pie)= | | x+1={4x} | | 5x-6=2(x+1)+1 | | (x/20)=-6 | | 1-5n=5+3n | | 7u^2-28m^2=0 | | 3/8r=36 | | -8/9x=24 | | x/7+1.3=2.1 | | 1/13a=2 | | -5-(6-2p)= | | 28x^4-3x^2-1=0 | | X-0.05X=8000 | | 8000=X-(X*0.05) | | -6x+2[5(x+1)+8]=38 | | -3+9x=24 | | 4x-5=-29 | | 3p+5=-7p-11 |

Equations solver categories