2(90-x)=13

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Solution for 2(90-x)=13 equation: 


Simplifying
2(90 + -1x) = 13
(90 * 2 + -1x * 2) = 13
(180 + -2x) = 13

Solving
180 + -2x = 13

Solving for variable 'x'.

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

Add '-180' to each side of the equation.
180 + -180 + -2x = 13 + -180

Combine like terms: 180 + -180 = 0
0 + -2x = 13 + -180
-2x = 13 + -180

Combine like terms: 13 + -180 = -167
-2x = -167

Divide each side by '-2'.
x = 83.5

Simplifying
x = 83.5

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