9y-4y-4=16

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Solution for 9y-4y-4=16 equation: 


Simplifying
9y + -4y + -4 = 16

Reorder the terms:
-4 + 9y + -4y = 16

Combine like terms: 9y + -4y = 5y
-4 + 5y = 16

Solving
-4 + 5y = 16

Solving for variable 'y'.

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

Add '4' to each side of the equation.
-4 + 4 + 5y = 16 + 4

Combine like terms: -4 + 4 = 0
0 + 5y = 16 + 4
5y = 16 + 4

Combine like terms: 16 + 4 = 20
5y = 20

Divide each side by '5'.
y = 4

Simplifying
y = 4

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