5(y+1)-y=3(y-1)+7

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Solution for 5(y+1)-y=3(y-1)+7 equation:


Simplifying
5(y + 1) + -1y = 3(y + -1) + 7

Reorder the terms:
5(1 + y) + -1y = 3(y + -1) + 7
(1 * 5 + y * 5) + -1y = 3(y + -1) + 7
(5 + 5y) + -1y = 3(y + -1) + 7

Combine like terms: 5y + -1y = 4y
5 + 4y = 3(y + -1) + 7

Reorder the terms:
5 + 4y = 3(-1 + y) + 7
5 + 4y = (-1 * 3 + y * 3) + 7
5 + 4y = (-3 + 3y) + 7

Reorder the terms:
5 + 4y = -3 + 7 + 3y

Combine like terms: -3 + 7 = 4
5 + 4y = 4 + 3y

Solving
5 + 4y = 4 + 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.
5 + 4y + -3y = 4 + 3y + -3y

Combine like terms: 4y + -3y = 1y
5 + 1y = 4 + 3y + -3y

Combine like terms: 3y + -3y = 0
5 + 1y = 4 + 0
5 + 1y = 4

Add '-5' to each side of the equation.
5 + -5 + 1y = 4 + -5

Combine like terms: 5 + -5 = 0
0 + 1y = 4 + -5
1y = 4 + -5

Combine like terms: 4 + -5 = -1
1y = -1

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

Simplifying
y = -1

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