5x-9+3x=87

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Solution for 5x-9+3x=87 equation: 


Simplifying
5x + -9 + 3x = 87

Reorder the terms:
-9 + 5x + 3x = 87

Combine like terms: 5x + 3x = 8x
-9 + 8x = 87

Solving
-9 + 8x = 87

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 8x = 87 + 9

Combine like terms: -9 + 9 = 0
0 + 8x = 87 + 9
8x = 87 + 9

Combine like terms: 87 + 9 = 96
8x = 96

Divide each side by '8'.
x = 12

Simplifying
x = 12

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