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25-09-2020
Mathematics

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The sum of two numbers is 54 The difference of the two numbers is 116 Find the numbers

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liame22 liame22

25-09-2020

answer:
85 and -31

step-by-step:
x + y = 54
x - y = 116
solve for x in first equation
x = 54 - y
sub into second equation
54 - y - y = 116
54 - 2y = 116
-2y = 62
y = -31
sub in x equation
x = 54 - (-31)
x = 85

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