9x-81=-3x-15

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Solution for 9x-81=-3x-15 equation:


Simplifying
9x + -81 = -3x + -15

Reorder the terms:
-81 + 9x = -3x + -15

Reorder the terms:
-81 + 9x = -15 + -3x

Solving
-81 + 9x = -15 + -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.
-81 + 9x + 3x = -15 + -3x + 3x

Combine like terms: 9x + 3x = 12x
-81 + 12x = -15 + -3x + 3x

Combine like terms: -3x + 3x = 0
-81 + 12x = -15 + 0
-81 + 12x = -15

Add '81' to each side of the equation.
-81 + 81 + 12x = -15 + 81

Combine like terms: -81 + 81 = 0
0 + 12x = -15 + 81
12x = -15 + 81

Combine like terms: -15 + 81 = 66
12x = 66

Divide each side by '12'.
x = 5.5

Simplifying
x = 5.5

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