(12x+7)+(18x-7)+(15x)=180

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Solution for (12x+7)+(18x-7)+(15x)=180 equation:


Simplifying
(12x + 7) + (18x + -7) + (15x) = 180

Reorder the terms:
(7 + 12x) + (18x + -7) + (15x) = 180

Remove parenthesis around (7 + 12x)
7 + 12x + (18x + -7) + (15x) = 180

Reorder the terms:
7 + 12x + (-7 + 18x) + (15x) = 180

Remove parenthesis around (-7 + 18x)
7 + 12x + -7 + 18x + (15x) = 180

Reorder the terms:
7 + -7 + 12x + 18x + (15x) = 180

Combine like terms: 7 + -7 = 0
0 + 12x + 18x + (15x) = 180
12x + 18x + (15x) = 180

Combine like terms: 12x + 18x = 30x
30x + (15x) = 180

Combine like terms: 30x + (15x) = 45x
45x = 180

Solving
45x = 180

Solving for variable 'x'.

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

Divide each side by '45'.
x = 4

Simplifying
x = 4

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