9-(1-3y)=4+(3-y)

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Solution for 9-(1-3y)=4+(3-y) equation: 


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

Combine like terms: 9 + -1 = 8
8 + 3y = 4 + (3 + -1y)

Remove parenthesis around (3 + -1y)
8 + 3y = 4 + 3 + -1y

Combine like terms: 4 + 3 = 7
8 + 3y = 7 + -1y

Solving
8 + 3y = 7 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
8 + 3y + y = 7 + -1y + y

Combine like terms: 3y + y = 4y
8 + 4y = 7 + -1y + y

Combine like terms: -1y + y = 0
8 + 4y = 7 + 0
8 + 4y = 7

Add '-8' to each side of the equation.
8 + -8 + 4y = 7 + -8

Combine like terms: 8 + -8 = 0
0 + 4y = 7 + -8
4y = 7 + -8

Combine like terms: 7 + -8 = -1
4y = -1

Divide each side by '4'.
y = -0.25

Simplifying
y = -0.25

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