8(20-5y)=80

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Solution for 8(20-5y)=80 equation: 


Simplifying
8(20 + -5y) = 80
(20 * 8 + -5y * 8) = 80
(160 + -40y) = 80

Solving
160 + -40y = 80

Solving for variable 'y'.

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

Add '-160' to each side of the equation.
160 + -160 + -40y = 80 + -160

Combine like terms: 160 + -160 = 0
0 + -40y = 80 + -160
-40y = 80 + -160

Combine like terms: 80 + -160 = -80
-40y = -80

Divide each side by '-40'.
y = 2

Simplifying
y = 2

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