-5=3(y-9)-(y+4)

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Solution for -5=3(y-9)-(y+4) equation:


Simplifying
-5 = 3(y + -9) + -1(y + 4)

Reorder the terms:
-5 = 3(-9 + y) + -1(y + 4)
-5 = (-9 * 3 + y * 3) + -1(y + 4)
-5 = (-27 + 3y) + -1(y + 4)

Reorder the terms:
-5 = -27 + 3y + -1(4 + y)
-5 = -27 + 3y + (4 * -1 + y * -1)
-5 = -27 + 3y + (-4 + -1y)

Reorder the terms:
-5 = -27 + -4 + 3y + -1y

Combine like terms: -27 + -4 = -31
-5 = -31 + 3y + -1y

Combine like terms: 3y + -1y = 2y
-5 = -31 + 2y

Solving
-5 = -31 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-5 + -2y = -31 + 2y + -2y

Combine like terms: 2y + -2y = 0
-5 + -2y = -31 + 0
-5 + -2y = -31

Add '5' to each side of the equation.
-5 + 5 + -2y = -31 + 5

Combine like terms: -5 + 5 = 0
0 + -2y = -31 + 5
-2y = -31 + 5

Combine like terms: -31 + 5 = -26
-2y = -26

Divide each side by '-2'.
y = 13

Simplifying
y = 13

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