7y-9=9y+7

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Solution for 7y-9=9y+7 equation:


Simplifying
7y + -9 = 9y + 7

Reorder the terms:
-9 + 7y = 9y + 7

Reorder the terms:
-9 + 7y = 7 + 9y

Solving
-9 + 7y = 7 + 9y

Solving for variable 'y'.

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

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

Combine like terms: 7y + -9y = -2y
-9 + -2y = 7 + 9y + -9y

Combine like terms: 9y + -9y = 0
-9 + -2y = 7 + 0
-9 + -2y = 7

Add '9' to each side of the equation.
-9 + 9 + -2y = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -2y = 7 + 9
-2y = 7 + 9

Combine like terms: 7 + 9 = 16
-2y = 16

Divide each side by '-2'.
y = -8

Simplifying
y = -8

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