PROBLEM

The difference of the sum of (-3) and (+1) and the product of (-10) and (+2) is equal to _____?

SOLUTION

First, we must get the sum of (-3) and (+1).

The sum of -3 and 1 is 2.

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Now, we got the sum of (-3) and (1), now we had to get the product of (-10) and (+2)

The product of -10 and 2 is -20.

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After getting the product, we must get the difference between -20 and -2.

When there a (-) in front of an expression in a parenthesis, change the sign of it.

Now solve.

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• Therefore, the difference of the sum of (-3) and (+1) and the product of (-10) and (+2) is equal to 18.

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