7y-9y=3-1

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Solution for 7y-9y=3-1 equation: 


Simplifying
7y + -9y = 3 + -1

Combine like terms: 7y + -9y = -2y
-2y = 3 + -1

Combine like terms: 3 + -1 = 2
-2y = 2

Solving
-2y = 2

Solving for variable 'y'.

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

Divide each side by '-2'.
y = -1

Simplifying
y = -1

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