5x-9=3x+21

Simple and best practice solution for 5x-9=3x+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 5x-9=3x+21 equation:


Simplifying
5x + -9 = 3x + 21

Reorder the terms:
-9 + 5x = 3x + 21

Reorder the terms:
-9 + 5x = 21 + 3x

Solving
-9 + 5x = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-9 + 5x + -3x = 21 + 3x + -3x

Combine like terms: 5x + -3x = 2x
-9 + 2x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-9 + 2x = 21 + 0
-9 + 2x = 21

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

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

Combine like terms: 21 + 9 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

See similar equations:

| x^3-2x^2-x^1=0 | | 3x+10=-7x | | 2(0)=0 | | 2(2)=0 | | 12+5z=-13 | | 4x(6x^2-13x-8x)=0 | | 34x-16=x+50 | | 1/2x4=2/3x | | 63x=-3x+660 | | -6+6x=-3x+660 | | 9x-7=6x-34 | | x-(-18)=19 | | 180-4X=3X^2+5 | | 2(x+10)=-3x | | 5x+2-2x=11 | | 2m^2-6m-24=0 | | 3(2a-4/b^2) | | x+10=-3x+14 | | 5x^2-16-x^2/2 | | sin(1.5x)=(3x) | | (x-3)(x+4)=18 | | (x-3)(x+4)=-18 | | (-1/4)^(1/3) | | -27x=-7 | | (3x+4)(3x+4)=0 | | 5u/4=20 | | 18z=72 | | 2w+8x-13y+6w+5x+8y= | | -3x-3(2x+6)=-117 | | 12=6/5y | | X^2-18x=-65 | | e^1-5x=793 |

Equations solver categories