4(13-y)=9y-(y-7)

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Solution for 4(13-y)=9y-(y-7) equation:


Simplifying
4(13 + -1y) = 9y + -1(y + -7)
(13 * 4 + -1y * 4) = 9y + -1(y + -7)
(52 + -4y) = 9y + -1(y + -7)

Reorder the terms:
52 + -4y = 9y + -1(-7 + y)
52 + -4y = 9y + (-7 * -1 + y * -1)
52 + -4y = 9y + (7 + -1y)

Reorder the terms:
52 + -4y = 7 + 9y + -1y

Combine like terms: 9y + -1y = 8y
52 + -4y = 7 + 8y

Solving
52 + -4y = 7 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
52 + -4y + -8y = 7 + 8y + -8y

Combine like terms: -4y + -8y = -12y
52 + -12y = 7 + 8y + -8y

Combine like terms: 8y + -8y = 0
52 + -12y = 7 + 0
52 + -12y = 7

Add '-52' to each side of the equation.
52 + -52 + -12y = 7 + -52

Combine like terms: 52 + -52 = 0
0 + -12y = 7 + -52
-12y = 7 + -52

Combine like terms: 7 + -52 = -45
-12y = -45

Divide each side by '-12'.
y = 3.75

Simplifying
y = 3.75

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