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

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


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

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

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

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

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

Combine like terms: -7 + -6 = -13
-13 + y + -1y = 8y

Combine like terms: y + -1y = 0
-13 + 0 = 8y
-13 = 8y

Solving
-13 = 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
-13 + -8y = 8y + -8y

Combine like terms: 8y + -8y = 0
-13 + -8y = 0

Add '13' to each side of the equation.
-13 + 13 + -8y = 0 + 13

Combine like terms: -13 + 13 = 0
0 + -8y = 0 + 13
-8y = 0 + 13

Combine like terms: 0 + 13 = 13
-8y = 13

Divide each side by '-8'.
y = -1.625

Simplifying
y = -1.625

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