(12x-6)+(6x-3)+90=180

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Solution for (12x-6)+(6x-3)+90=180 equation:


Simplifying
(12x + -6) + (6x + -3) + 90 = 180

Reorder the terms:
(-6 + 12x) + (6x + -3) + 90 = 180

Remove parenthesis around (-6 + 12x)
-6 + 12x + (6x + -3) + 90 = 180

Reorder the terms:
-6 + 12x + (-3 + 6x) + 90 = 180

Remove parenthesis around (-3 + 6x)
-6 + 12x + -3 + 6x + 90 = 180

Reorder the terms:
-6 + -3 + 90 + 12x + 6x = 180

Combine like terms: -6 + -3 = -9
-9 + 90 + 12x + 6x = 180

Combine like terms: -9 + 90 = 81
81 + 12x + 6x = 180

Combine like terms: 12x + 6x = 18x
81 + 18x = 180

Solving
81 + 18x = 180

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + 18x = 180 + -81

Combine like terms: 81 + -81 = 0
0 + 18x = 180 + -81
18x = 180 + -81

Combine like terms: 180 + -81 = 99
18x = 99

Divide each side by '18'.
x = 5.5

Simplifying
x = 5.5

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