x+3x+18=180

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Solution for x+3x+18=180 equation:


Simplifying
x + 3x + 18 = 180

Reorder the terms:
18 + x + 3x = 180

Combine like terms: x + 3x = 4x
18 + 4x = 180

Solving
18 + 4x = 180

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 4x = 180 + -18

Combine like terms: 18 + -18 = 0
0 + 4x = 180 + -18
4x = 180 + -18

Combine like terms: 180 + -18 = 162
4x = 162

Divide each side by '4'.
x = 40.5

Simplifying
x = 40.5

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