(Y-4)-(y-4)=7y

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Solution for (Y-4)-(y-4)=7y equation:


Simplifying
(Y + -4) + -1(y + -4) = 7y

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

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

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

Reorder the terms:
-4 + 4 + Y + -1y = 7y

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

Solving
Y + -1y = 7y

Solving for variable 'Y'.

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

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

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

Combine like terms: 7y + y = 8y
Y = 8y

Simplifying
Y = 8y

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