-(7y-8)-(-6y-4)=9

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Solution for -(7y-8)-(-6y-4)=9 equation:


Simplifying
-1(7y + -8) + -1(-6y + -4) = 9

Reorder the terms:
-1(-8 + 7y) + -1(-6y + -4) = 9
(-8 * -1 + 7y * -1) + -1(-6y + -4) = 9
(8 + -7y) + -1(-6y + -4) = 9

Reorder the terms:
8 + -7y + -1(-4 + -6y) = 9
8 + -7y + (-4 * -1 + -6y * -1) = 9
8 + -7y + (4 + 6y) = 9

Reorder the terms:
8 + 4 + -7y + 6y = 9

Combine like terms: 8 + 4 = 12
12 + -7y + 6y = 9

Combine like terms: -7y + 6y = -1y
12 + -1y = 9

Solving
12 + -1y = 9

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + -1y = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -1y = 9 + -12
-1y = 9 + -12

Combine like terms: 9 + -12 = -3
-1y = -3

Divide each side by '-1'.
y = 3

Simplifying
y = 3

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