x+3+12=9x

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Solution for x+3+12=9x equation:


Simplifying
x + 3 + 12 = 9x

Reorder the terms:
3 + 12 + x = 9x

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

Solving
15 + x = 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 + x + -9x = 9x + -9x

Combine like terms: x + -9x = -8x
15 + -8x = 9x + -9x

Combine like terms: 9x + -9x = 0
15 + -8x = 0

Add '-15' to each side of the equation.
15 + -15 + -8x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -8x = 0 + -15
-8x = 0 + -15

Combine like terms: 0 + -15 = -15
-8x = -15

Divide each side by '-8'.
x = 1.875

Simplifying
x = 1.875

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