5y+9=-4y-9

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Solution for 5y+9=-4y-9 equation: 


Simplifying
5y + 9 = -4y + -9

Reorder the terms:
9 + 5y = -4y + -9

Reorder the terms:
9 + 5y = -9 + -4y

Solving
9 + 5y = -9 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
9 + 5y + 4y = -9 + -4y + 4y

Combine like terms: 5y + 4y = 9y
9 + 9y = -9 + -4y + 4y

Combine like terms: -4y + 4y = 0
9 + 9y = -9 + 0
9 + 9y = -9

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

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

Combine like terms: -9 + -9 = -18
9y = -18

Divide each side by '9'.
y = -2

Simplifying
y = -2

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