4(20-0.5y)-2y=150

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Solution for 4(20-0.5y)-2y=150 equation: 


Simplifying
4(20 + -0.5y) + -2y = 150
(20 * 4 + -0.5y * 4) + -2y = 150
(80 + -2y) + -2y = 150

Combine like terms: -2y + -2y = -4y
80 + -4y = 150

Solving
80 + -4y = 150

Solving for variable 'y'.

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

Add '-80' to each side of the equation.
80 + -80 + -4y = 150 + -80

Combine like terms: 80 + -80 = 0
0 + -4y = 150 + -80
-4y = 150 + -80

Combine like terms: 150 + -80 = 70
-4y = 70

Divide each side by '-4'.
y = -17.5

Simplifying
y = -17.5

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