21y-117=723

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Solution for 21y-117=723 equation: 


Simplifying
21y + -117 = 723

Reorder the terms:
-117 + 21y = 723

Solving
-117 + 21y = 723

Solving for variable 'y'.

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

Add '117' to each side of the equation.
-117 + 117 + 21y = 723 + 117

Combine like terms: -117 + 117 = 0
0 + 21y = 723 + 117
21y = 723 + 117

Combine like terms: 723 + 117 = 840
21y = 840

Divide each side by '21'.
y = 40

Simplifying
y = 40

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