Malikweaver817 Malikweaver817

15-11-2017
Mathematics

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a first number plus twice a second number is 14 twice the first number plus the second totals 31

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jeep211 jeep211

15-11-2017

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yellowyarn2003 yellowyarn2003

15-11-2017

x+2y=14
2x+y=31
x=-2y+14
-4y+28+y=31
-3y=3
y=-1
x-2=14
x=16
The first number is 16 and the second number is -1

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