40(-y+40)=120

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Solution for 40(-y+40)=120 equation: 


Simplifying
40(-1y + 40) = 120

Reorder the terms:
40(40 + -1y) = 120
(40 * 40 + -1y * 40) = 120
(1600 + -40y) = 120

Solving
1600 + -40y = 120

Solving for variable 'y'.

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

Add '-1600' to each side of the equation.
1600 + -1600 + -40y = 120 + -1600

Combine like terms: 1600 + -1600 = 0
0 + -40y = 120 + -1600
-40y = 120 + -1600

Combine like terms: 120 + -1600 = -1480
-40y = -1480

Divide each side by '-40'.
y = 37

Simplifying
y = 37

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