3y-4=9

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Solution for 3y-4=9 equation: 


Simplifying
3y + -4 = 9

Reorder the terms:
-4 + 3y = 9

Solving
-4 + 3y = 9

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 + 3y = 9 + 4

Combine like terms: -4 + 4 = 0
0 + 3y = 9 + 4
3y = 9 + 4

Combine like terms: 9 + 4 = 13
3y = 13

Divide each side by '3'.
y = 4.333333333

Simplifying
y = 4.333333333

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