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

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


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

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

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

Reorder the terms:
12 + 90 + x + 3x = 180

Combine like terms: 12 + 90 = 102
102 + x + 3x = 180

Combine like terms: x + 3x = 4x
102 + 4x = 180

Solving
102 + 4x = 180

Solving for variable 'x'.

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

Add '-102' to each side of the equation.
102 + -102 + 4x = 180 + -102

Combine like terms: 102 + -102 = 0
0 + 4x = 180 + -102
4x = 180 + -102

Combine like terms: 180 + -102 = 78
4x = 78

Divide each side by '4'.
x = 19.5

Simplifying
x = 19.5

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