5y-15=-7(y-3)

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Solution for 5y-15=-7(y-3) equation:


Simplifying
5y + -15 = -7(y + -3)

Reorder the terms:
-15 + 5y = -7(y + -3)

Reorder the terms:
-15 + 5y = -7(-3 + y)
-15 + 5y = (-3 * -7 + y * -7)
-15 + 5y = (21 + -7y)

Solving
-15 + 5y = 21 + -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.
-15 + 5y + 7y = 21 + -7y + 7y

Combine like terms: 5y + 7y = 12y
-15 + 12y = 21 + -7y + 7y

Combine like terms: -7y + 7y = 0
-15 + 12y = 21 + 0
-15 + 12y = 21

Add '15' to each side of the equation.
-15 + 15 + 12y = 21 + 15

Combine like terms: -15 + 15 = 0
0 + 12y = 21 + 15
12y = 21 + 15

Combine like terms: 21 + 15 = 36
12y = 36

Divide each side by '12'.
y = 3

Simplifying
y = 3

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