5-4y=-21

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Solution for 5-4y=-21 equation: 


Simplifying
5 + -4y = -21

Solving
5 + -4y = -21

Solving for variable 'y'.

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

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

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

Combine like terms: -21 + -5 = -26
-4y = -26

Divide each side by '-4'.
y = 6.5

Simplifying
y = 6.5

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