7y-9=8

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Solution for 7y-9=8 equation: 


Simplifying
7y + -9 = 8

Reorder the terms:
-9 + 7y = 8

Solving
-9 + 7y = 8

Solving for variable 'y'.

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

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

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

Combine like terms: 8 + 9 = 17
7y = 17

Divide each side by '7'.
y = 2.428571429

Simplifying
y = 2.428571429

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