5[7-8y]=-85

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Solution for 5[7-8y]=-85 equation: 


Simplifying
5[7 + -8y] = -85
[7 * 5 + -8y * 5] = -85
[35 + -40y] = -85

Solving
35 + -40y = -85

Solving for variable 'y'.

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

Add '-35' to each side of the equation.
35 + -35 + -40y = -85 + -35

Combine like terms: 35 + -35 = 0
0 + -40y = -85 + -35
-40y = -85 + -35

Combine like terms: -85 + -35 = -120
-40y = -120

Divide each side by '-40'.
y = 3

Simplifying
y = 3

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