81-3x=15x+15

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Solution for 81-3x=15x+15 equation:


Simplifying
81 + -3x = 15x + 15

Reorder the terms:
81 + -3x = 15 + 15x

Solving
81 + -3x = 15 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
81 + -3x + -15x = 15 + 15x + -15x

Combine like terms: -3x + -15x = -18x
81 + -18x = 15 + 15x + -15x

Combine like terms: 15x + -15x = 0
81 + -18x = 15 + 0
81 + -18x = 15

Add '-81' to each side of the equation.
81 + -81 + -18x = 15 + -81

Combine like terms: 81 + -81 = 0
0 + -18x = 15 + -81
-18x = 15 + -81

Combine like terms: 15 + -81 = -66
-18x = -66

Divide each side by '-18'.
x = 3.666666667

Simplifying
x = 3.666666667

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