13(y-4)-3(y-9)-5(y+4)=0

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Solution for 13(y-4)-3(y-9)-5(y+4)=0 equation:


Simplifying
13(y + -4) + -3(y + -9) + -5(y + 4) = 0

Reorder the terms:
13(-4 + y) + -3(y + -9) + -5(y + 4) = 0
(-4 * 13 + y * 13) + -3(y + -9) + -5(y + 4) = 0
(-52 + 13y) + -3(y + -9) + -5(y + 4) = 0

Reorder the terms:
-52 + 13y + -3(-9 + y) + -5(y + 4) = 0
-52 + 13y + (-9 * -3 + y * -3) + -5(y + 4) = 0
-52 + 13y + (27 + -3y) + -5(y + 4) = 0

Reorder the terms:
-52 + 13y + 27 + -3y + -5(4 + y) = 0
-52 + 13y + 27 + -3y + (4 * -5 + y * -5) = 0
-52 + 13y + 27 + -3y + (-20 + -5y) = 0

Reorder the terms:
-52 + 27 + -20 + 13y + -3y + -5y = 0

Combine like terms: -52 + 27 = -25
-25 + -20 + 13y + -3y + -5y = 0

Combine like terms: -25 + -20 = -45
-45 + 13y + -3y + -5y = 0

Combine like terms: 13y + -3y = 10y
-45 + 10y + -5y = 0

Combine like terms: 10y + -5y = 5y
-45 + 5y = 0

Solving
-45 + 5y = 0

Solving for variable 'y'.

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

Add '45' to each side of the equation.
-45 + 45 + 5y = 0 + 45

Combine like terms: -45 + 45 = 0
0 + 5y = 0 + 45
5y = 0 + 45

Combine like terms: 0 + 45 = 45
5y = 45

Divide each side by '5'.
y = 9

Simplifying
y = 9

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