8(15+5y)=80

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Solution for 8(15+5y)=80 equation: 


Simplifying
8(15 + 5y) = 80
(15 * 8 + 5y * 8) = 80
(120 + 40y) = 80

Solving
120 + 40y = 80

Solving for variable 'y'.

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

Add '-120' to each side of the equation.
120 + -120 + 40y = 80 + -120

Combine like terms: 120 + -120 = 0
0 + 40y = 80 + -120
40y = 80 + -120

Combine like terms: 80 + -120 = -40
40y = -40

Divide each side by '40'.
y = -1

Simplifying
y = -1

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