y=7y+9

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Solution for y=7y+9 equation: 


Simplifying
y = 7y + 9

Reorder the terms:
y = 9 + 7y

Solving
y = 9 + 7y

Solving for variable 'y'.

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

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

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

Combine like terms: 7y + -7y = 0
-6y = 9 + 0
-6y = 9

Divide each side by '-6'.
y = -1.5

Simplifying
y = -1.5

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