Asked by Candy
The sum of two numbers is 19, and their difference is 55. What are the two numbers?
Solving systems using elimination
Solving systems using elimination
Answers
Answered by
Reiny
x+y = 19
x-y = 55
add them
2x = 74
x = 37
in 1st ---> 37+y=19
y = -18
the numbers are -18 and 37
x-y = 55
add them
2x = 74
x = 37
in 1st ---> 37+y=19
y = -18
the numbers are -18 and 37
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