4y-8+4y=9

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


Simplifying
4y + -8 + 4y = 9

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

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

Solving
-8 + 8y = 9

Solving for variable 'y'.

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

Add '8' to each side of the equation.
-8 + 8 + 8y = 9 + 8

Combine like terms: -8 + 8 = 0
0 + 8y = 9 + 8
8y = 9 + 8

Combine like terms: 9 + 8 = 17
8y = 17

Divide each side by '8'.
y = 2.125

Simplifying
y = 2.125

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