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OpenStudy (anonymous):
The sum of 2 numbers is 18. The difference between 3 times the smaller number and the larger number is 10. Define variables and formulate a system of equations from this situation. What is the larger number? work please? :D
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OpenStudy (anonymous):
x+y=18 3x-y=10 add both equations to get 4x=28 x=7 y=18-x= 18-7=11 y=11
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