3x-3y=90

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Solution for 3x-3y=90 equation: 


Simplifying
3x + -3y = 90

Solving
3x + -3y = 90

Solving for variable 'x'.

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

Add '3y' to each side of the equation.
3x + -3y + 3y = 90 + 3y

Combine like terms: -3y + 3y = 0
3x + 0 = 90 + 3y
3x = 90 + 3y

Divide each side by '3'.
x = 30 + y

Simplifying
x = 30 + y

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