4-(5y+7)=3(8-y)

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Solution for 4-(5y+7)=3(8-y) equation:


Simplifying
4 + -1(5y + 7) = 3(8 + -1y)

Reorder the terms:
4 + -1(7 + 5y) = 3(8 + -1y)
4 + (7 * -1 + 5y * -1) = 3(8 + -1y)
4 + (-7 + -5y) = 3(8 + -1y)

Combine like terms: 4 + -7 = -3
-3 + -5y = 3(8 + -1y)
-3 + -5y = (8 * 3 + -1y * 3)
-3 + -5y = (24 + -3y)

Solving
-3 + -5y = 24 + -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.
-3 + -5y + 3y = 24 + -3y + 3y

Combine like terms: -5y + 3y = -2y
-3 + -2y = 24 + -3y + 3y

Combine like terms: -3y + 3y = 0
-3 + -2y = 24 + 0
-3 + -2y = 24

Add '3' to each side of the equation.
-3 + 3 + -2y = 24 + 3

Combine like terms: -3 + 3 = 0
0 + -2y = 24 + 3
-2y = 24 + 3

Combine like terms: 24 + 3 = 27
-2y = 27

Divide each side by '-2'.
y = -13.5

Simplifying
y = -13.5

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