When –3 is multiplied by the sum of a number and 8, the result is –21. Find the number.

asked Feb 11, 2017 132k views

3 votes

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3 votes

let's take the number as a
-3 (a + 8) = -21
a + 8 = (-21 / -3)
a + 8 = 7
a = -1

that number is -1

Jonah Graham answered Feb 17, 2017

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