4y-21=-5

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Solution for 4y-21=-5 equation: 


Simplifying
4y + -21 = -5

Reorder the terms:
-21 + 4y = -5

Solving
-21 + 4y = -5

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + 4y = -5 + 21

Combine like terms: -21 + 21 = 0
0 + 4y = -5 + 21
4y = -5 + 21

Combine like terms: -5 + 21 = 16
4y = 16

Divide each side by '4'.
y = 4

Simplifying
y = 4

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