8y+7-y=3+6y-9

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Solution for 8y+7-y=3+6y-9 equation:


Simplifying
8y + 7 + -1y = 3 + 6y + -9

Reorder the terms:
7 + 8y + -1y = 3 + 6y + -9

Combine like terms: 8y + -1y = 7y
7 + 7y = 3 + 6y + -9

Reorder the terms:
7 + 7y = 3 + -9 + 6y

Combine like terms: 3 + -9 = -6
7 + 7y = -6 + 6y

Solving
7 + 7y = -6 + 6y

Solving for variable 'y'.

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

Add '-6y' to each side of the equation.
7 + 7y + -6y = -6 + 6y + -6y

Combine like terms: 7y + -6y = 1y
7 + 1y = -6 + 6y + -6y

Combine like terms: 6y + -6y = 0
7 + 1y = -6 + 0
7 + 1y = -6

Add '-7' to each side of the equation.
7 + -7 + 1y = -6 + -7

Combine like terms: 7 + -7 = 0
0 + 1y = -6 + -7
1y = -6 + -7

Combine like terms: -6 + -7 = -13
1y = -13

Divide each side by '1'.
y = -13

Simplifying
y = -13

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