7(3y+5)-4(2y-3)=5(y-1)

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Solution for 7(3y+5)-4(2y-3)=5(y-1) equation:


Simplifying
7(3y + 5) + -4(2y + -3) = 5(y + -1)

Reorder the terms:
7(5 + 3y) + -4(2y + -3) = 5(y + -1)
(5 * 7 + 3y * 7) + -4(2y + -3) = 5(y + -1)
(35 + 21y) + -4(2y + -3) = 5(y + -1)

Reorder the terms:
35 + 21y + -4(-3 + 2y) = 5(y + -1)
35 + 21y + (-3 * -4 + 2y * -4) = 5(y + -1)
35 + 21y + (12 + -8y) = 5(y + -1)

Reorder the terms:
35 + 12 + 21y + -8y = 5(y + -1)

Combine like terms: 35 + 12 = 47
47 + 21y + -8y = 5(y + -1)

Combine like terms: 21y + -8y = 13y
47 + 13y = 5(y + -1)

Reorder the terms:
47 + 13y = 5(-1 + y)
47 + 13y = (-1 * 5 + y * 5)
47 + 13y = (-5 + 5y)

Solving
47 + 13y = -5 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
47 + 13y + -5y = -5 + 5y + -5y

Combine like terms: 13y + -5y = 8y
47 + 8y = -5 + 5y + -5y

Combine like terms: 5y + -5y = 0
47 + 8y = -5 + 0
47 + 8y = -5

Add '-47' to each side of the equation.
47 + -47 + 8y = -5 + -47

Combine like terms: 47 + -47 = 0
0 + 8y = -5 + -47
8y = -5 + -47

Combine like terms: -5 + -47 = -52
8y = -52

Divide each side by '8'.
y = -6.5

Simplifying
y = -6.5

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