90=x+y+(x-33)

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Solution for 90=x+y+(x-33) equation: 


Simplifying
90 = x + y + (x + -33)

Reorder the terms:
90 = x + y + (-33 + x)

Remove parenthesis around (-33 + x)
90 = x + y + -33 + x

Reorder the terms:
90 = -33 + x + x + y

Combine like terms: x + x = 2x
90 = -33 + 2x + y

Solving
90 = -33 + 2x + y

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
90 + -2x = -33 + 2x + -2x + y

Combine like terms: 2x + -2x = 0
90 + -2x = -33 + 0 + y
90 + -2x = -33 + y

Add '-90' to each side of the equation.
90 + -90 + -2x = -33 + -90 + y

Combine like terms: 90 + -90 = 0
0 + -2x = -33 + -90 + y
-2x = -33 + -90 + y

Combine like terms: -33 + -90 = -123
-2x = -123 + y

Divide each side by '-2'.
x = 61.5 + -0.5y

Simplifying
x = 61.5 + -0.5y

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