(9x+15y)+(3x+3y)=180

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Solution for (9x+15y)+(3x+3y)=180 equation:


Simplifying
(9x + 15y) + (3x + 3y) = 180

Remove parenthesis around (9x + 15y)
9x + 15y + (3x + 3y) = 180

Remove parenthesis around (3x + 3y)
9x + 15y + 3x + 3y = 180

Reorder the terms:
9x + 3x + 15y + 3y = 180

Combine like terms: 9x + 3x = 12x
12x + 15y + 3y = 180

Combine like terms: 15y + 3y = 18y
12x + 18y = 180

Solving
12x + 18y = 180

Solving for variable 'x'.

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

Add '-18y' to each side of the equation.
12x + 18y + -18y = 180 + -18y

Combine like terms: 18y + -18y = 0
12x + 0 = 180 + -18y
12x = 180 + -18y

Divide each side by '12'.
x = 15 + -1.5y

Simplifying
x = 15 + -1.5y

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