8y+18=-y-9

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Solution for 8y+18=-y-9 equation:


Simplifying
8y + 18 = -1y + -9

Reorder the terms:
18 + 8y = -1y + -9

Reorder the terms:
18 + 8y = -9 + -1y

Solving
18 + 8y = -9 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
18 + 8y + y = -9 + -1y + y

Combine like terms: 8y + y = 9y
18 + 9y = -9 + -1y + y

Combine like terms: -1y + y = 0
18 + 9y = -9 + 0
18 + 9y = -9

Add '-18' to each side of the equation.
18 + -18 + 9y = -9 + -18

Combine like terms: 18 + -18 = 0
0 + 9y = -9 + -18
9y = -9 + -18

Combine like terms: -9 + -18 = -27
9y = -27

Divide each side by '9'.
y = -3

Simplifying
y = -3

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