15-3x=57

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Solution for 15-3x=57 equation: 


Simplifying
15 + -3x = 57

Solving
15 + -3x = 57

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + -3x = 57 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = 57 + -15
-3x = 57 + -15

Combine like terms: 57 + -15 = 42
-3x = 42

Divide each side by '-3'.
x = -14

Simplifying
x = -14

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