31=-5y+8(y+5)

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Solution for 31=-5y+8(y+5) equation:


Simplifying
31 = -5y + 8(y + 5)

Reorder the terms:
31 = -5y + 8(5 + y)
31 = -5y + (5 * 8 + y * 8)
31 = -5y + (40 + 8y)

Reorder the terms:
31 = 40 + -5y + 8y

Combine like terms: -5y + 8y = 3y
31 = 40 + 3y

Solving
31 = 40 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
31 + -3y = 40 + 3y + -3y

Combine like terms: 3y + -3y = 0
31 + -3y = 40 + 0
31 + -3y = 40

Add '-31' to each side of the equation.
31 + -31 + -3y = 40 + -31

Combine like terms: 31 + -31 = 0
0 + -3y = 40 + -31
-3y = 40 + -31

Combine like terms: 40 + -31 = 9
-3y = 9

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

Simplifying
y = -3

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