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

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


Simplifying
(9 + -4y) + -1(4y + -8) = 0

Remove parenthesis around (9 + -4y)
9 + -4y + -1(4y + -8) = 0

Reorder the terms:
9 + -4y + -1(-8 + 4y) = 0
9 + -4y + (-8 * -1 + 4y * -1) = 0
9 + -4y + (8 + -4y) = 0

Reorder the terms:
9 + 8 + -4y + -4y = 0

Combine like terms: 9 + 8 = 17
17 + -4y + -4y = 0

Combine like terms: -4y + -4y = -8y
17 + -8y = 0

Solving
17 + -8y = 0

Solving for variable 'y'.

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

Add '-17' to each side of the equation.
17 + -17 + -8y = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -8y = 0 + -17
-8y = 0 + -17

Combine like terms: 0 + -17 = -17
-8y = -17

Divide each side by '-8'.
y = 2.125

Simplifying
y = 2.125

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