13(x+9)=5x+15

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Solution for 13(x+9)=5x+15 equation:


Simplifying
13(x + 9) = 5x + 15

Reorder the terms:
13(9 + x) = 5x + 15
(9 * 13 + x * 13) = 5x + 15
(117 + 13x) = 5x + 15

Reorder the terms:
117 + 13x = 15 + 5x

Solving
117 + 13x = 15 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
117 + 13x + -5x = 15 + 5x + -5x

Combine like terms: 13x + -5x = 8x
117 + 8x = 15 + 5x + -5x

Combine like terms: 5x + -5x = 0
117 + 8x = 15 + 0
117 + 8x = 15

Add '-117' to each side of the equation.
117 + -117 + 8x = 15 + -117

Combine like terms: 117 + -117 = 0
0 + 8x = 15 + -117
8x = 15 + -117

Combine like terms: 15 + -117 = -102
8x = -102

Divide each side by '8'.
x = -12.75

Simplifying
x = -12.75

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