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horsena [70]
3 years ago
6

One number is seven less than four times the other number. The sum of the two numbers is 93. Find the numbers.

Mathematics
1 answer:
ivann1987 [24]3 years ago
6 0

You can write the two equations x = 4y - 7 and x + y = 93; substitute the value of x into the other equation

(4y - 7) + y = 93; combine like terms

5y - 7 = 93; add 7 to both sides

5y = 100; divide both sides by 5

y = 20; substitute this value into the other equation

x + 20 = 93

x = 73

So the numbers are 20 and 73

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olganol [36]
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Hope it helps! :D

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Read 2 more answers
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