SOLUTION: the sum of twie a first number and three times a second number is 67. if the second number is subtracted from the three times the first number the result is 7. find the number
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Question 582657: the sum of twie a first number and three times a second number is 67. if the second number is subtracted from the three times the first number the result is 7. find the number
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let the numbers be x & y
2x+3y=67.............(1)
3x-y=7.............(2)
multiply equation by 3
9x-3y=21
add to equation (1)
11x=88
/11
x=8
plug value of x in (1)
2x+3y=67
16+3y=67
3y=51
/3
y=17
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