8(y+5)+9=2(y+7)-y

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Solution for 8(y+5)+9=2(y+7)-y equation:


Simplifying
8(y + 5) + 9 = 2(y + 7) + -1y

Reorder the terms:
8(5 + y) + 9 = 2(y + 7) + -1y
(5 * 8 + y * 8) + 9 = 2(y + 7) + -1y
(40 + 8y) + 9 = 2(y + 7) + -1y

Reorder the terms:
40 + 9 + 8y = 2(y + 7) + -1y

Combine like terms: 40 + 9 = 49
49 + 8y = 2(y + 7) + -1y

Reorder the terms:
49 + 8y = 2(7 + y) + -1y
49 + 8y = (7 * 2 + y * 2) + -1y
49 + 8y = (14 + 2y) + -1y

Combine like terms: 2y + -1y = 1y
49 + 8y = 14 + 1y

Solving
49 + 8y = 14 + 1y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
49 + 8y + -1y = 14 + 1y + -1y

Combine like terms: 8y + -1y = 7y
49 + 7y = 14 + 1y + -1y

Combine like terms: 1y + -1y = 0
49 + 7y = 14 + 0
49 + 7y = 14

Add '-49' to each side of the equation.
49 + -49 + 7y = 14 + -49

Combine like terms: 49 + -49 = 0
0 + 7y = 14 + -49
7y = 14 + -49

Combine like terms: 14 + -49 = -35
7y = -35

Divide each side by '7'.
y = -5

Simplifying
y = -5

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