-(8y+4)-(-7y-5)=-7

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Solution for -(8y+4)-(-7y-5)=-7 equation:


Simplifying
-1(8y + 4) + -1(-7y + -5) = -7

Reorder the terms:
-1(4 + 8y) + -1(-7y + -5) = -7
(4 * -1 + 8y * -1) + -1(-7y + -5) = -7
(-4 + -8y) + -1(-7y + -5) = -7

Reorder the terms:
-4 + -8y + -1(-5 + -7y) = -7
-4 + -8y + (-5 * -1 + -7y * -1) = -7
-4 + -8y + (5 + 7y) = -7

Reorder the terms:
-4 + 5 + -8y + 7y = -7

Combine like terms: -4 + 5 = 1
1 + -8y + 7y = -7

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

Solving
1 + -1y = -7

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 + -1y = -7 + -1

Combine like terms: 1 + -1 = 0
0 + -1y = -7 + -1
-1y = -7 + -1

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

Divide each side by '-1'.
y = 8

Simplifying
y = 8

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