7y+9-9y-1=

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


Simplifying
7y + 9 + -9y + -1 = 0

Reorder the terms:
9 + -1 + 7y + -9y = 0

Combine like terms: 9 + -1 = 8
8 + 7y + -9y = 0

Combine like terms: 7y + -9y = -2y
8 + -2y = 0

Solving
8 + -2y = 0

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + -2y = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -2y = 0 + -8
-2y = 0 + -8

Combine like terms: 0 + -8 = -8
-2y = -8

Divide each side by '-2'.
y = 4

Simplifying
y = 4

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