40=5(y-20)

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Solution for 40=5(y-20) equation: 


Simplifying
40 = 5(y + -20)

Reorder the terms:
40 = 5(-20 + y)
40 = (-20 * 5 + y * 5)
40 = (-100 + 5y)

Solving
40 = -100 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
40 + -5y = -100 + 5y + -5y

Combine like terms: 5y + -5y = 0
40 + -5y = -100 + 0
40 + -5y = -100

Add '-40' to each side of the equation.
40 + -40 + -5y = -100 + -40

Combine like terms: 40 + -40 = 0
0 + -5y = -100 + -40
-5y = -100 + -40

Combine like terms: -100 + -40 = -140
-5y = -140

Divide each side by '-5'.
y = 28

Simplifying
y = 28

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