9x-9y+(15x+15y)=90

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Solution for 9x-9y+(15x+15y)=90 equation:


Simplifying
9x + -9y + (15x + 15y) = 90

Remove parenthesis around (15x + 15y)
9x + -9y + 15x + 15y = 90

Reorder the terms:
9x + 15x + -9y + 15y = 90

Combine like terms: 9x + 15x = 24x
24x + -9y + 15y = 90

Combine like terms: -9y + 15y = 6y
24x + 6y = 90

Solving
24x + 6y = 90

Solving for variable 'x'.

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

Add '-6y' to each side of the equation.
24x + 6y + -6y = 90 + -6y

Combine like terms: 6y + -6y = 0
24x + 0 = 90 + -6y
24x = 90 + -6y

Divide each side by '24'.
x = 3.75 + -0.25y

Simplifying
x = 3.75 + -0.25y

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