4+4(y-8)=21

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


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

Reorder the terms:
4 + 4(-8 + y) = 21
4 + (-8 * 4 + y * 4) = 21
4 + (-32 + 4y) = 21

Combine like terms: 4 + -32 = -28
-28 + 4y = 21

Solving
-28 + 4y = 21

Solving for variable 'y'.

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

Add '28' to each side of the equation.
-28 + 28 + 4y = 21 + 28

Combine like terms: -28 + 28 = 0
0 + 4y = 21 + 28
4y = 21 + 28

Combine like terms: 21 + 28 = 49
4y = 49

Divide each side by '4'.
y = 12.25

Simplifying
y = 12.25

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