The equation is x + 14 = 25.

x + 14 14 = 25 14               (Subtract 14 from each side)

x = 25 14                               (Apply Additive inverse property: 5 5 = 0)

x = 11                                        (Subtract: 33 5 = 28)

Check:

To check the solution, substitute x = 11 in original equation.

x + 14 = 25 11 + 14 = 15

25 = 25                               (Add: 11 + 14 = 25)

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 11 on  the number line.
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The value of x = 11.