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11 months ago

If x+y=16 and x-y=-2, what is the value of xy?

Mathematics

1 answer:

Fantom [35]11 months ago

8 0

Answer:

Y=7 and

X=9

Step-by-step explanation:

X+Y=16

X=2+Y

2+Y+Y=16

2+2Y=16

2Y=16-2

2Y=14

2Y/2=14/2

Y=7

X =2+Y

So X=9

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