31=-7+8(y+3)

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Solution for 31=-7+8(y+3) equation:


Simplifying
31 = -7 + 8(y + 3)

Reorder the terms:
31 = -7 + 8(3 + y)
31 = -7 + (3 * 8 + y * 8)
31 = -7 + (24 + 8y)

Combine like terms: -7 + 24 = 17
31 = 17 + 8y

Solving
31 = 17 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
31 + -8y = 17 + 8y + -8y

Combine like terms: 8y + -8y = 0
31 + -8y = 17 + 0
31 + -8y = 17

Add '-31' to each side of the equation.
31 + -31 + -8y = 17 + -31

Combine like terms: 31 + -31 = 0
0 + -8y = 17 + -31
-8y = 17 + -31

Combine like terms: 17 + -31 = -14
-8y = -14

Divide each side by '-8'.
y = 1.75

Simplifying
y = 1.75

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