(15x+8y)+(x-4y)=180

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Solution for (15x+8y)+(x-4y)=180 equation: 


Simplifying
(15x + 8y) + (x + -4y) = 180

Remove parenthesis around (15x + 8y)
15x + 8y + (x + -4y) = 180

Remove parenthesis around (x + -4y)
15x + 8y + x + -4y = 180

Reorder the terms:
15x + x + 8y + -4y = 180

Combine like terms: 15x + x = 16x
16x + 8y + -4y = 180

Combine like terms: 8y + -4y = 4y
16x + 4y = 180

Solving
16x + 4y = 180

Solving for variable 'x'.

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

Add '-4y' to each side of the equation.
16x + 4y + -4y = 180 + -4y

Combine like terms: 4y + -4y = 0
16x + 0 = 180 + -4y
16x = 180 + -4y

Divide each side by '16'.
x = 11.25 + -0.25y

Simplifying
x = 11.25 + -0.25y

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