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notsponge [240]
3 years ago
7

The sum of two numbers is 12. the difference of the same two numbers is -4 . find the two numbers

Mathematics
1 answer:
gtnhenbr [62]3 years ago
5 0

Answer:

(4,8)

x=4

y=8

Step-by-step explanation:

x is the first number

y is the second number

x+y=12

x-y= -4

Let's add y and 4 to the second equation to get y by itself

x+4=y

We can substitute this value in for y in the first equation

x+x+4=12

2x=8

x=4

We can then use x=4 and plug that into any equation

4+y=12

y=8

The answer is (4,8)

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