x=42+(90-x)

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Solution for x=42+(90-x) equation:


Simplifying
x = 42 + (90 + -1x)

Remove parenthesis around (90 + -1x)
x = 42 + 90 + -1x

Combine like terms: 42 + 90 = 132
x = 132 + -1x

Solving
x = 132 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
x + x = 132 + -1x + x

Combine like terms: x + x = 2x
2x = 132 + -1x + x

Combine like terms: -1x + x = 0
2x = 132 + 0
2x = 132

Divide each side by '2'.
x = 66

Simplifying
x = 66

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