3x+x-18=180

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


Simplifying
3x + x + -18 = 180

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

Combine like terms: 3x + x = 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 = 198
4x = 198

Divide each side by '4'.
x = 49.5

Simplifying
x = 49.5

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