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Aleonysh [2.5K]
3 years ago
12

Three times a number minus another number is -3. The sum of the numbers is 11. Find the numbers

Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0

The first equation is

3x-y=-3

The second equation is

x+y=11

If you sum the two equations you'll cancel y:

4x=8 \iff x=2

And since the sum must be 11, we have y=9.

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