-7y+13=-9(y-1)

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Solution for -7y+13=-9(y-1) equation:


Simplifying
-7y + 13 = -9(y + -1)

Reorder the terms:
13 + -7y = -9(y + -1)

Reorder the terms:
13 + -7y = -9(-1 + y)
13 + -7y = (-1 * -9 + y * -9)
13 + -7y = (9 + -9y)

Solving
13 + -7y = 9 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
13 + -7y + 9y = 9 + -9y + 9y

Combine like terms: -7y + 9y = 2y
13 + 2y = 9 + -9y + 9y

Combine like terms: -9y + 9y = 0
13 + 2y = 9 + 0
13 + 2y = 9

Add '-13' to each side of the equation.
13 + -13 + 2y = 9 + -13

Combine like terms: 13 + -13 = 0
0 + 2y = 9 + -13
2y = 9 + -13

Combine like terms: 9 + -13 = -4
2y = -4

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

Simplifying
y = -2

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