(5x-12)+(3x)+90=180

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Solution for (5x-12)+(3x)+90=180 equation:


Simplifying
(5x + -12) + (3x) + 90 = 180

Reorder the terms:
(-12 + 5x) + (3x) + 90 = 180

Remove parenthesis around (-12 + 5x)
-12 + 5x + (3x) + 90 = 180

Reorder the terms:
-12 + 90 + 5x + (3x) = 180

Combine like terms: -12 + 90 = 78
78 + 5x + (3x) = 180

Combine like terms: 5x + (3x) = 8x
78 + 8x = 180

Solving
78 + 8x = 180

Solving for variable 'x'.

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

Add '-78' to each side of the equation.
78 + -78 + 8x = 180 + -78

Combine like terms: 78 + -78 = 0
0 + 8x = 180 + -78
8x = 180 + -78

Combine like terms: 180 + -78 = 102
8x = 102

Divide each side by '8'.
x = 12.75

Simplifying
x = 12.75

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