7y+8-y=3*5y+9

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Solution for 7y+8-y=3*5y+9 equation:


Simplifying
7y + 8 + -1y = 3 * 5y + 9

Reorder the terms:
8 + 7y + -1y = 3 * 5y + 9

Combine like terms: 7y + -1y = 6y
8 + 6y = 3 * 5y + 9

Multiply 3 * 5
8 + 6y = 15y + 9

Reorder the terms:
8 + 6y = 9 + 15y

Solving
8 + 6y = 9 + 15y

Solving for variable 'y'.

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

Add '-15y' to each side of the equation.
8 + 6y + -15y = 9 + 15y + -15y

Combine like terms: 6y + -15y = -9y
8 + -9y = 9 + 15y + -15y

Combine like terms: 15y + -15y = 0
8 + -9y = 9 + 0
8 + -9y = 9

Add '-8' to each side of the equation.
8 + -8 + -9y = 9 + -8

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

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

Divide each side by '-9'.
y = -0.1111111111

Simplifying
y = -0.1111111111

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