30-(2x)=180

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Solution for 30-(2x)=180 equation: 


Simplifying
30 + -1(2x) = 180

Remove parenthesis around (2x)
30 + -1 * 2x = 180

Multiply -1 * 2
30 + -2x = 180

Solving
30 + -2x = 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 + -2x = 180 + -30

Combine like terms: 30 + -30 = 0
0 + -2x = 180 + -30
-2x = 180 + -30

Combine like terms: 180 + -30 = 150
-2x = 150

Divide each side by '-2'.
x = -75

Simplifying
x = -75

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