3 years ago

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Mathematics

1 answer:

lawyer [7]3 years ago

3 0

Answer:

Step-by-step explanation:

x+y=12

x-y=18

Now eliminate the y by adding the two equations together to get

2x=30

x=15

then solve for y.

15+y=12

15-y=18

y= -3

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