Question

The sum of x and y is 42. The difference between x and y is 6. What are x and y?

Answer 1

Answer:

x+y=42

x-y=6

Step-by-step explanation:

x=42-y

x=6+y

42-y=6+y

42-6=y+y

36=2y

y=18

18+x=42

x=24

Answer 2

Answer:

x+y=42

x-y=6

y=x-6

x+(x-6)=42

x+x-6=42

2x=48

x=48/2=24...

x+y=42

24+y=42

y=42-24

y=18...

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