9+y+4=8y-1

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Solution for 9+y+4=8y-1 equation:


Simplifying
9 + y + 4 = 8y + -1

Reorder the terms:
9 + 4 + y = 8y + -1

Combine like terms: 9 + 4 = 13
13 + y = 8y + -1

Reorder the terms:
13 + y = -1 + 8y

Solving
13 + y = -1 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
13 + y + -8y = -1 + 8y + -8y

Combine like terms: y + -8y = -7y
13 + -7y = -1 + 8y + -8y

Combine like terms: 8y + -8y = 0
13 + -7y = -1 + 0
13 + -7y = -1

Add '-13' to each side of the equation.
13 + -13 + -7y = -1 + -13

Combine like terms: 13 + -13 = 0
0 + -7y = -1 + -13
-7y = -1 + -13

Combine like terms: -1 + -13 = -14
-7y = -14

Divide each side by '-7'.
y = 2

Simplifying
y = 2

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