The equation is y + 14 = 72.

Apply subtraction property of equality: Subtract 14 from each side.

y + 1414 = 7214

y + 0 = 72 14           (Apply additive inverse property: 2424 = 0)

y  = 7214                  (Apply additive identity property: x + 0 = x)

y = 58                           (Subtract: 7214 = 58)

Check:

To check the solution, substitute y = 58 in original equation.

y + 14 = 72 58 + 14 = 72

72 = 72                        (Add: 58 + 14 = 72)

The statement is true.

Graph the solution on number line.

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• First draw a number line.
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• Mark a dot at 58 on  the number line.
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The value of y = 58.