-21=4y-5

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Solution for -21=4y-5 equation:


Simplifying
-21 = 4y + -5

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

Solving
-21 = -5 + 4y

Solving for variable 'y'.

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

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

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

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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