-8(y+9)=1-7y

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Solution for -8(y+9)=1-7y equation:


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

Reorder the terms:
-8(9 + y) = 1 + -7y
(9 * -8 + y * -8) = 1 + -7y
(-72 + -8y) = 1 + -7y

Solving
-72 + -8y = 1 + -7y

Solving for variable 'y'.

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

Add '7y' to each side of the equation.
-72 + -8y + 7y = 1 + -7y + 7y

Combine like terms: -8y + 7y = -1y
-72 + -1y = 1 + -7y + 7y

Combine like terms: -7y + 7y = 0
-72 + -1y = 1 + 0
-72 + -1y = 1

Add '72' to each side of the equation.
-72 + 72 + -1y = 1 + 72

Combine like terms: -72 + 72 = 0
0 + -1y = 1 + 72
-1y = 1 + 72

Combine like terms: 1 + 72 = 73
-1y = 73

Divide each side by '-1'.
y = -73

Simplifying
y = -73

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