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

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Solution for (-8y+1)-(-7y-6)=4 equation:


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

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

Remove parenthesis around (1 + -8y)
1 + -8y + -1(-7y + -6) = 4

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

Reorder the terms:
1 + 6 + -8y + 7y = 4

Combine like terms: 1 + 6 = 7
7 + -8y + 7y = 4

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

Solving
7 + -1y = 4

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + -1y = 4 + -7

Combine like terms: 7 + -7 = 0
0 + -1y = 4 + -7
-1y = 4 + -7

Combine like terms: 4 + -7 = -3
-1y = -3

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

Simplifying
y = 3

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