05-12-2016
Mathematics

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the sum of two numbers is 85. twice one number plus four times the other is 218. find the numbers

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heyitsjassie heyitsjassie

05-12-2016

x + y = 85
2x + 4y = 218
x = 85 - y
2(85 - y) + 4y = 218
170 - 2y + 4y = 218
170 + 2y = 218
2y = 48
y = 24
x = 61

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