2(39.5-.5y)+(5y-25)=180

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Solution for 2(39.5-.5y)+(5y-25)=180 equation:


Simplifying
2(39.5 + -0.5y) + (5y + -25) = 180
(39.5 * 2 + -0.5y * 2) + (5y + -25) = 180
(79 + -1y) + (5y + -25) = 180

Reorder the terms:
79 + -1y + (-25 + 5y) = 180

Remove parenthesis around (-25 + 5y)
79 + -1y + -25 + 5y = 180

Reorder the terms:
79 + -25 + -1y + 5y = 180

Combine like terms: 79 + -25 = 54
54 + -1y + 5y = 180

Combine like terms: -1y + 5y = 4y
54 + 4y = 180

Solving
54 + 4y = 180

Solving for variable 'y'.

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

Add '-54' to each side of the equation.
54 + -54 + 4y = 180 + -54

Combine like terms: 54 + -54 = 0
0 + 4y = 180 + -54
4y = 180 + -54

Combine like terms: 180 + -54 = 126
4y = 126

Divide each side by '4'.
y = 31.5

Simplifying
y = 31.5

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