y+9+4y-1+2y=

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Solution for y+9+4y-1+2y= equation: 


Simplifying
y + 9 + 4y + -1 + 2y = 0

Reorder the terms:
9 + -1 + y + 4y + 2y = 0

Combine like terms: 9 + -1 = 8
8 + y + 4y + 2y = 0

Combine like terms: y + 4y = 5y
8 + 5y + 2y = 0

Combine like terms: 5y + 2y = 7y
8 + 7y = 0

Solving
8 + 7y = 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 + 7y = 0 + -8

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

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

Divide each side by '7'.
y = -1.142857143

Simplifying
y = -1.142857143

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