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

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


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

Reorder the terms:
(-4 + y) + -1(y + 3) = 8y

Remove parenthesis around (-4 + y)
-4 + y + -1(y + 3) = 8y

Reorder the terms:
-4 + y + -1(3 + y) = 8y
-4 + y + (3 * -1 + y * -1) = 8y
-4 + y + (-3 + -1y) = 8y

Reorder the terms:
-4 + -3 + y + -1y = 8y

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

Combine like terms: y + -1y = 0
-7 + 0 = 8y
-7 = 8y

Solving
-7 = 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.
-7 + -8y = 8y + -8y

Combine like terms: 8y + -8y = 0
-7 + -8y = 0

Add '7' to each side of the equation.
-7 + 7 + -8y = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -8y = 0 + 7
-8y = 0 + 7

Combine like terms: 0 + 7 = 7
-8y = 7

Divide each side by '-8'.
y = -0.875

Simplifying
y = -0.875

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