9+4y=3(4-y)

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Solution for 9+4y=3(4-y) equation: 


Simplifying
9 + 4y = 3(4 + -1y)
9 + 4y = (4 * 3 + -1y * 3)
9 + 4y = (12 + -3y)

Solving
9 + 4y = 12 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
9 + 4y + 3y = 12 + -3y + 3y

Combine like terms: 4y + 3y = 7y
9 + 7y = 12 + -3y + 3y

Combine like terms: -3y + 3y = 0
9 + 7y = 12 + 0
9 + 7y = 12

Add '-9' to each side of the equation.
9 + -9 + 7y = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 7y = 12 + -9
7y = 12 + -9

Combine like terms: 12 + -9 = 3
7y = 3

Divide each side by '7'.
y = 0.4285714286

Simplifying
y = 0.4285714286

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