-15=-7y+4(y+3)

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Solution for -15=-7y+4(y+3) equation:


Simplifying
-15 = -7y + 4(y + 3)

Reorder the terms:
-15 = -7y + 4(3 + y)
-15 = -7y + (3 * 4 + y * 4)
-15 = -7y + (12 + 4y)

Reorder the terms:
-15 = 12 + -7y + 4y

Combine like terms: -7y + 4y = -3y
-15 = 12 + -3y

Solving
-15 = 12 + -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.
-15 + 3y = 12 + -3y + 3y

Combine like terms: -3y + 3y = 0
-15 + 3y = 12 + 0
-15 + 3y = 12

Add '15' to each side of the equation.
-15 + 15 + 3y = 12 + 15

Combine like terms: -15 + 15 = 0
0 + 3y = 12 + 15
3y = 12 + 15

Combine like terms: 12 + 15 = 27
3y = 27

Divide each side by '3'.
y = 9

Simplifying
y = 9

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