28-5y=21

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Solution for 28-5y=21 equation: 


Simplifying
28 + -5y = 21

Solving
28 + -5y = 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 + -5y = 21 + -28

Combine like terms: 28 + -28 = 0
0 + -5y = 21 + -28
-5y = 21 + -28

Combine like terms: 21 + -28 = -7
-5y = -7

Divide each side by '-5'.
y = 1.4

Simplifying
y = 1.4

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