9y=4y-20

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Solution for 9y=4y-20 equation: 


Simplifying
9y = 4y + -20

Reorder the terms:
9y = -20 + 4y

Solving
9y = -20 + 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.
9y + -4y = -20 + 4y + -4y

Combine like terms: 9y + -4y = 5y
5y = -20 + 4y + -4y

Combine like terms: 4y + -4y = 0
5y = -20 + 0
5y = -20

Divide each side by '5'.
y = -4

Simplifying
y = -4

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