-7(y+5)=-9y-21

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Solution for -7(y+5)=-9y-21 equation:


Simplifying
-7(y + 5) = -9y + -21

Reorder the terms:
-7(5 + y) = -9y + -21
(5 * -7 + y * -7) = -9y + -21
(-35 + -7y) = -9y + -21

Reorder the terms:
-35 + -7y = -21 + -9y

Solving
-35 + -7y = -21 + -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.
-35 + -7y + 9y = -21 + -9y + 9y

Combine like terms: -7y + 9y = 2y
-35 + 2y = -21 + -9y + 9y

Combine like terms: -9y + 9y = 0
-35 + 2y = -21 + 0
-35 + 2y = -21

Add '35' to each side of the equation.
-35 + 35 + 2y = -21 + 35

Combine like terms: -35 + 35 = 0
0 + 2y = -21 + 35
2y = -21 + 35

Combine like terms: -21 + 35 = 14
2y = 14

Divide each side by '2'.
y = 7

Simplifying
y = 7

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