-4(7-3y)=80

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Solution for -4(7-3y)=80 equation: 


Simplifying
-4(7 + -3y) = 80
(7 * -4 + -3y * -4) = 80
(-28 + 12y) = 80

Solving
-28 + 12y = 80

Solving for variable 'y'.

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

Add '28' to each side of the equation.
-28 + 28 + 12y = 80 + 28

Combine like terms: -28 + 28 = 0
0 + 12y = 80 + 28
12y = 80 + 28

Combine like terms: 80 + 28 = 108
12y = 108

Divide each side by '12'.
y = 9

Simplifying
y = 9

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