9+4y=2[3-y]

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Solution for 9+4y=2[3-y] equation:


Simplifying
9 + 4y = 2[3 + -1y]
9 + 4y = [3 * 2 + -1y * 2]
9 + 4y = [6 + -2y]

Solving
9 + 4y = 6 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
9 + 4y + 2y = 6 + -2y + 2y

Combine like terms: 4y + 2y = 6y
9 + 6y = 6 + -2y + 2y

Combine like terms: -2y + 2y = 0
9 + 6y = 6 + 0
9 + 6y = 6

Add '-9' to each side of the equation.
9 + -9 + 6y = 6 + -9

Combine like terms: 9 + -9 = 0
0 + 6y = 6 + -9
6y = 6 + -9

Combine like terms: 6 + -9 = -3
6y = -3

Divide each side by '6'.
y = -0.5

Simplifying
y = -0.5

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