3 years ago

The sum of 69 and 42 is five more than the difference of 146 and a number. Calculate the value of the unknown number.

1 answer:

5 0

As an equation, we have:
69+42=5+(146-x)

You just have to simplify:

111=5+(146-x)
106=146-x
-40=-x
40=x

Your unknown number is 40

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