5y-21=56

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Solution for 5y-21=56 equation: 


Simplifying
5y + -21 = 56

Reorder the terms:
-21 + 5y = 56

Solving
-21 + 5y = 56

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 + 5y = 56 + 21

Combine like terms: -21 + 21 = 0
0 + 5y = 56 + 21
5y = 56 + 21

Combine like terms: 56 + 21 = 77
5y = 77

Divide each side by '5'.
y = 15.4

Simplifying
y = 15.4

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