4(15-5y)=-40

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Solution for 4(15-5y)=-40 equation: 


Simplifying
4(15 + -5y) = -40
(15 * 4 + -5y * 4) = -40
(60 + -20y) = -40

Solving
60 + -20y = -40

Solving for variable 'y'.

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

Add '-60' to each side of the equation.
60 + -60 + -20y = -40 + -60

Combine like terms: 60 + -60 = 0
0 + -20y = -40 + -60
-20y = -40 + -60

Combine like terms: -40 + -60 = -100
-20y = -100

Divide each side by '-20'.
y = 5

Simplifying
y = 5

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