9y-(7y+3)=-1

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Solution for 9y-(7y+3)=-1 equation:


Simplifying
9y + -1(7y + 3) = -1

Reorder the terms:
9y + -1(3 + 7y) = -1
9y + (3 * -1 + 7y * -1) = -1
9y + (-3 + -7y) = -1

Reorder the terms:
-3 + 9y + -7y = -1

Combine like terms: 9y + -7y = 2y
-3 + 2y = -1

Solving
-3 + 2y = -1

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + 2y = -1 + 3

Combine like terms: -3 + 3 = 0
0 + 2y = -1 + 3
2y = -1 + 3

Combine like terms: -1 + 3 = 2
2y = 2

Divide each side by '2'.
y = 1

Simplifying
y = 1

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