9y+4=8y-1

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


Simplifying
9y + 4 = 8y + -1

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

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

Solving
4 + 9y = -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.
4 + 9y + -8y = -1 + 8y + -8y

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

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

Add '-4' to each side of the equation.
4 + -4 + 1y = -1 + -4

Combine like terms: 4 + -4 = 0
0 + 1y = -1 + -4
1y = -1 + -4

Combine like terms: -1 + -4 = -5
1y = -5

Divide each side by '1'.
y = -5

Simplifying
y = -5

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