-(3+4)-(-2y-8)=-1

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Solution for -(3+4)-(-2y-8)=-1 equation: 


Simplifying
-1(3 + 4) + -1(-2y + -8) = -1

Combine like terms: 3 + 4 = 7
-1(7) + -1(-2y + -8) = -1

Multiply -1 * 7
-7 + -1(-2y + -8) = -1

Reorder the terms:
-7 + -1(-8 + -2y) = -1
-7 + (-8 * -1 + -2y * -1) = -1
-7 + (8 + 2y) = -1

Combine like terms: -7 + 8 = 1
1 + 2y = -1

Solving
1 + 2y = -1

Solving for variable 'y'.

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

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

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

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

Divide each side by '2'.
y = -1

Simplifying
y = -1

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