4(21-4y)-16=y

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Solution for 4(21-4y)-16=y equation:


Simplifying
4(21 + -4y) + -16 = y
(21 * 4 + -4y * 4) + -16 = y
(84 + -16y) + -16 = y

Reorder the terms:
84 + -16 + -16y = y

Combine like terms: 84 + -16 = 68
68 + -16y = y

Solving
68 + -16y = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
68 + -16y + -1y = y + -1y

Combine like terms: -16y + -1y = -17y
68 + -17y = y + -1y

Combine like terms: y + -1y = 0
68 + -17y = 0

Add '-68' to each side of the equation.
68 + -68 + -17y = 0 + -68

Combine like terms: 68 + -68 = 0
0 + -17y = 0 + -68
-17y = 0 + -68

Combine like terms: 0 + -68 = -68
-17y = -68

Divide each side by '-17'.
y = 4

Simplifying
y = 4

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