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The sum of 2 positive integers is 13. The difference between these numbers is 7. what is their product. A. 12 B. 22 C. 30 D. 40 please explain how ypu got ypu answer too.
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4 votes
The sum of 2 positive integers is 13. The difference between these numbers is 7. what is their product.

A. 12
B. 22
C. 30
D. 40
please explain how ypu got ypu answer too.

User Sourab Sharma
by
7.2k points

1 Answer

4 votes
X+y=13
X-y=7

X=13-y
13-y-y=7
-2y=7-13
-2y=-6
y=3

x-3=7
x=7+3
x=10

10+3=13
10-3=7
User Tomas Dolezal
by
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