7(2y-8)-(y+9)=

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Solution for 7(2y-8)-(y+9)= equation:


Simplifying
7(2y + -8) + -1(y + 9) = 0

Reorder the terms:
7(-8 + 2y) + -1(y + 9) = 0
(-8 * 7 + 2y * 7) + -1(y + 9) = 0
(-56 + 14y) + -1(y + 9) = 0

Reorder the terms:
-56 + 14y + -1(9 + y) = 0
-56 + 14y + (9 * -1 + y * -1) = 0
-56 + 14y + (-9 + -1y) = 0

Reorder the terms:
-56 + -9 + 14y + -1y = 0

Combine like terms: -56 + -9 = -65
-65 + 14y + -1y = 0

Combine like terms: 14y + -1y = 13y
-65 + 13y = 0

Solving
-65 + 13y = 0

Solving for variable 'y'.

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

Add '65' to each side of the equation.
-65 + 65 + 13y = 0 + 65

Combine like terms: -65 + 65 = 0
0 + 13y = 0 + 65
13y = 0 + 65

Combine like terms: 0 + 65 = 65
13y = 65

Divide each side by '13'.
y = 5

Simplifying
y = 5

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