15x+12=66-3x

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Solution for 15x+12=66-3x equation:


Simplifying
15x + 12 = 66 + -3x

Reorder the terms:
12 + 15x = 66 + -3x

Solving
12 + 15x = 66 + -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 + 15x + 3x = 66 + -3x + 3x

Combine like terms: 15x + 3x = 18x
12 + 18x = 66 + -3x + 3x

Combine like terms: -3x + 3x = 0
12 + 18x = 66 + 0
12 + 18x = 66

Add '-12' to each side of the equation.
12 + -12 + 18x = 66 + -12

Combine like terms: 12 + -12 = 0
0 + 18x = 66 + -12
18x = 66 + -12

Combine like terms: 66 + -12 = 54
18x = 54

Divide each side by '18'.
x = 3

Simplifying
x = 3

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