-9y+[7+(6y-7)]=-9

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


Simplifying
-9y + [7 + (6y + -7)] = -9

Reorder the terms:
-9y + [7 + (-7 + 6y)] = -9

Remove parenthesis around (-7 + 6y)
-9y + [7 + -7 + 6y] = -9

Combine like terms: 7 + -7 = 0
-9y + [0 + 6y] = -9
-9y + [6y] = -9
-9y + [6y] = -9

Combine like terms: -9y + [6y] = -3y
-3y = -9

Solving
-3y = -9

Solving for variable 'y'.

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

Divide each side by '-3'.
y = 3

Simplifying
y = 3

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