(3x-12)+4x-18=180

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Solution for (3x-12)+4x-18=180 equation:


Simplifying
(3x + -12) + 4x + -18 = 180

Reorder the terms:
(-12 + 3x) + 4x + -18 = 180

Remove parenthesis around (-12 + 3x)
-12 + 3x + 4x + -18 = 180

Reorder the terms:
-12 + -18 + 3x + 4x = 180

Combine like terms: -12 + -18 = -30
-30 + 3x + 4x = 180

Combine like terms: 3x + 4x = 7x
-30 + 7x = 180

Solving
-30 + 7x = 180

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 7x = 180 + 30

Combine like terms: -30 + 30 = 0
0 + 7x = 180 + 30
7x = 180 + 30

Combine like terms: 180 + 30 = 210
7x = 210

Divide each side by '7'.
x = 30

Simplifying
x = 30

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