15=3x-18-85

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Solution for 15=3x-18-85 equation:


Simplifying
15 = 3x + -18 + -85

Reorder the terms:
15 = -18 + -85 + 3x

Combine like terms: -18 + -85 = -103
15 = -103 + 3x

Solving
15 = -103 + 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.
15 + -3x = -103 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + -3x = -103 + 0
15 + -3x = -103

Add '-15' to each side of the equation.
15 + -15 + -3x = -103 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = -103 + -15
-3x = -103 + -15

Combine like terms: -103 + -15 = -118
-3x = -118

Divide each side by '-3'.
x = 39.33333333

Simplifying
x = 39.33333333

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