(9x+20)+(7x+2y)=180

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Solution for (9x+20)+(7x+2y)=180 equation: 


Simplifying
(9x + 20) + (7x + 2y) = 180

Reorder the terms:
(20 + 9x) + (7x + 2y) = 180

Remove parenthesis around (20 + 9x)
20 + 9x + (7x + 2y) = 180

Remove parenthesis around (7x + 2y)
20 + 9x + 7x + 2y = 180

Combine like terms: 9x + 7x = 16x
20 + 16x + 2y = 180

Solving
20 + 16x + 2y = 180

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + 16x + -20 + 2y = 180 + -20

Reorder the terms:
20 + -20 + 16x + 2y = 180 + -20

Combine like terms: 20 + -20 = 0
0 + 16x + 2y = 180 + -20
16x + 2y = 180 + -20

Combine like terms: 180 + -20 = 160
16x + 2y = 160

Add '-2y' to each side of the equation.
16x + 2y + -2y = 160 + -2y

Combine like terms: 2y + -2y = 0
16x + 0 = 160 + -2y
16x = 160 + -2y

Divide each side by '16'.
x = 10 + -0.125y

Simplifying
x = 10 + -0.125y

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