4(18+-.1y)+6(18+-.1y)+y=180

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Solution for 4(18+-.1y)+6(18+-.1y)+y=180 equation: 


Simplifying
4(18 + -0.1y) + 6(18 + -0.1y) + y = 180
(18 * 4 + -0.1y * 4) + 6(18 + -0.1y) + y = 180
(72 + -0.4y) + 6(18 + -0.1y) + y = 180
72 + -0.4y + (18 * 6 + -0.1y * 6) + y = 180
72 + -0.4y + (108 + -0.6y) + y = 180

Reorder the terms:
72 + 108 + -0.4y + -0.6y + y = 180

Combine like terms: 72 + 108 = 180
180 + -0.4y + -0.6y + y = 180

Combine like terms: -0.4y + -0.6y = -1y
180 + -1y + y = 180

Combine like terms: -1y + y = 0
180 + 0 = 180
180 = 180

Add '-180' to each side of the equation.
180 + -180 = 180 + -180

Combine like terms: 180 + -180 = 0
0 = 180 + -180

Combine like terms: 180 + -180 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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