The sum of two numbers is 53 and the difference is 15 . what are the numbers?

1 answer:

8 0

19 because the two equations would be:
x+y=53 and x-y=15 and if you solve the second one for x it becomes: x=15+y and of you plug that in and solve it becomes:
(15+y)+y=53
15+2y=53
2y=38
y=19

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