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

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


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

Reorder the terms:
3(-1 + y) = 4(y + 1)
(-1 * 3 + y * 3) = 4(y + 1)
(-3 + 3y) = 4(y + 1)

Reorder the terms:
-3 + 3y = 4(1 + y)
-3 + 3y = (1 * 4 + y * 4)
-3 + 3y = (4 + 4y)

Solving
-3 + 3y = 4 + 4y

Solving for variable 'y'.

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

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

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

Combine like terms: 4y + -4y = 0
-3 + -1y = 4 + 0
-3 + -1y = 4

Add '3' to each side of the equation.
-3 + 3 + -1y = 4 + 3

Combine like terms: -3 + 3 = 0
0 + -1y = 4 + 3
-1y = 4 + 3

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

Divide each side by '-1'.
y = -7

Simplifying
y = -7

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