8y+-7=9

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Solution for 8y+-7=9 equation: 


Simplifying
8y + -7 = 9

Reorder the terms:
-7 + 8y = 9

Solving
-7 + 8y = 9

Solving for variable 'y'.

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

Add '7' to each side of the equation.
-7 + 7 + 8y = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 8y = 9 + 7
8y = 9 + 7

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

Divide each side by '8'.
y = 2

Simplifying
y = 2

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