8-(-8)+9y=7

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


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

Multiply -1 * -8
8 + 8 + 9y = 7

Combine like terms: 8 + 8 = 16
16 + 9y = 7

Solving
16 + 9y = 7

Solving for variable 'y'.

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

Add '-16' to each side of the equation.
16 + -16 + 9y = 7 + -16

Combine like terms: 16 + -16 = 0
0 + 9y = 7 + -16
9y = 7 + -16

Combine like terms: 7 + -16 = -9
9y = -9

Divide each side by '9'.
y = -1

Simplifying
y = -1

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