13=-7y+4(y-2)

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Solution for 13=-7y+4(y-2) equation:


Simplifying
13 = -7y + 4(y + -2)

Reorder the terms:
13 = -7y + 4(-2 + y)
13 = -7y + (-2 * 4 + y * 4)
13 = -7y + (-8 + 4y)

Reorder the terms:
13 = -8 + -7y + 4y

Combine like terms: -7y + 4y = -3y
13 = -8 + -3y

Solving
13 = -8 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
13 + 3y = -8 + -3y + 3y

Combine like terms: -3y + 3y = 0
13 + 3y = -8 + 0
13 + 3y = -8

Add '-13' to each side of the equation.
13 + -13 + 3y = -8 + -13

Combine like terms: 13 + -13 = 0
0 + 3y = -8 + -13
3y = -8 + -13

Combine like terms: -8 + -13 = -21
3y = -21

Divide each side by '3'.
y = -7

Simplifying
y = -7

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