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OpenStudy (anonymous):
The sum of two numbers is 100. The second is three times the first. Find the two numbers.
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OpenStudy (eyust707):
"The sum of two numbers is 100" x + y = 100
OpenStudy (eyust707):
the second is three times the first y = 3x
OpenStudy (eyust707):
Substitute "y" for "3x" x+ 3x = 100
OpenStudy (eyust707):
simplify 4x = 100 x = 25
OpenStudy (eyust707):
y = 3x y = 3*25 y=75
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