12x-15=3(3x+3)

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Solution for 12x-15=3(3x+3) equation:


Simplifying
12x + -15 = 3(3x + 3)

Reorder the terms:
-15 + 12x = 3(3x + 3)

Reorder the terms:
-15 + 12x = 3(3 + 3x)
-15 + 12x = (3 * 3 + 3x * 3)
-15 + 12x = (9 + 9x)

Solving
-15 + 12x = 9 + 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.
-15 + 12x + -9x = 9 + 9x + -9x

Combine like terms: 12x + -9x = 3x
-15 + 3x = 9 + 9x + -9x

Combine like terms: 9x + -9x = 0
-15 + 3x = 9 + 0
-15 + 3x = 9

Add '15' to each side of the equation.
-15 + 15 + 3x = 9 + 15

Combine like terms: -15 + 15 = 0
0 + 3x = 9 + 15
3x = 9 + 15

Combine like terms: 9 + 15 = 24
3x = 24

Divide each side by '3'.
x = 8

Simplifying
x = 8

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