12-9x=3(x+10)

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Solution for 12-9x=3(x+10) equation:


Simplifying
12 + -9x = 3(x + 10)

Reorder the terms:
12 + -9x = 3(10 + x)
12 + -9x = (10 * 3 + x * 3)
12 + -9x = (30 + 3x)

Solving
12 + -9x = 30 + 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.
12 + -9x + -3x = 30 + 3x + -3x

Combine like terms: -9x + -3x = -12x
12 + -12x = 30 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + -12x = 30 + 0
12 + -12x = 30

Add '-12' to each side of the equation.
12 + -12 + -12x = 30 + -12

Combine like terms: 12 + -12 = 0
0 + -12x = 30 + -12
-12x = 30 + -12

Combine like terms: 30 + -12 = 18
-12x = 18

Divide each side by '-12'.
x = -1.5

Simplifying
x = -1.5

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