-21-4y=-7

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Solution for -21-4y=-7 equation: 


Simplifying
-21 + -4y = -7

Solving
-21 + -4y = -7

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 = -7 + 21

Combine like terms: -21 + 21 = 0
0 + -4y = -7 + 21
-4y = -7 + 21

Combine like terms: -7 + 21 = 14
-4y = 14

Divide each side by '-4'.
y = -3.5

Simplifying
y = -3.5

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