7(y+9)=-6y-15

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Solution for 7(y+9)=-6y-15 equation:


Simplifying
7(y + 9) = -6y + -15

Reorder the terms:
7(9 + y) = -6y + -15
(9 * 7 + y * 7) = -6y + -15
(63 + 7y) = -6y + -15

Reorder the terms:
63 + 7y = -15 + -6y

Solving
63 + 7y = -15 + -6y

Solving for variable 'y'.

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

Add '6y' to each side of the equation.
63 + 7y + 6y = -15 + -6y + 6y

Combine like terms: 7y + 6y = 13y
63 + 13y = -15 + -6y + 6y

Combine like terms: -6y + 6y = 0
63 + 13y = -15 + 0
63 + 13y = -15

Add '-63' to each side of the equation.
63 + -63 + 13y = -15 + -63

Combine like terms: 63 + -63 = 0
0 + 13y = -15 + -63
13y = -15 + -63

Combine like terms: -15 + -63 = -78
13y = -78

Divide each side by '13'.
y = -6

Simplifying
y = -6

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