4(y-21)=y-8

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Solution for 4(y-21)=y-8 equation:


Simplifying
4(y + -21) = y + -8

Reorder the terms:
4(-21 + y) = y + -8
(-21 * 4 + y * 4) = y + -8
(-84 + 4y) = y + -8

Reorder the terms:
-84 + 4y = -8 + y

Solving
-84 + 4y = -8 + 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.
-84 + 4y + -1y = -8 + y + -1y

Combine like terms: 4y + -1y = 3y
-84 + 3y = -8 + y + -1y

Combine like terms: y + -1y = 0
-84 + 3y = -8 + 0
-84 + 3y = -8

Add '84' to each side of the equation.
-84 + 84 + 3y = -8 + 84

Combine like terms: -84 + 84 = 0
0 + 3y = -8 + 84
3y = -8 + 84

Combine like terms: -8 + 84 = 76
3y = 76

Divide each side by '3'.
y = 25.33333333

Simplifying
y = 25.33333333

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