-3y+9=-7(y-7)

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Solution for -3y+9=-7(y-7) equation:


Simplifying
-3y + 9 = -7(y + -7)

Reorder the terms:
9 + -3y = -7(y + -7)

Reorder the terms:
9 + -3y = -7(-7 + y)
9 + -3y = (-7 * -7 + y * -7)
9 + -3y = (49 + -7y)

Solving
9 + -3y = 49 + -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.
9 + -3y + 7y = 49 + -7y + 7y

Combine like terms: -3y + 7y = 4y
9 + 4y = 49 + -7y + 7y

Combine like terms: -7y + 7y = 0
9 + 4y = 49 + 0
9 + 4y = 49

Add '-9' to each side of the equation.
9 + -9 + 4y = 49 + -9

Combine like terms: 9 + -9 = 0
0 + 4y = 49 + -9
4y = 49 + -9

Combine like terms: 49 + -9 = 40
4y = 40

Divide each side by '4'.
y = 10

Simplifying
y = 10

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