7-7=9y-7y

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


Simplifying
7 + -7 = 9y + -7y

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

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

Solving
0 = 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
0 + -2y = 2y + -2y
Remove the zero:
-2y = 2y + -2y

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

Divide each side by '-2'.
y = 0

Simplifying
y = 0

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