3 years ago

X + y = 9/x - y = 5?????

Mathematics

1 answer:

adell [148]3 years ago

7 0

Answer:

y=2

x=7

Step-by-step explanation:

subtract equation 1 from 2

0+2y=4

y=2

substitute y into equation 1

x+2=9

x=9-2

x=7

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