SOLUTION: the sum of 2 numbers is 29 and their difference is 13. solve.
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Question 599023: the sum of 2 numbers is 29 and their difference is 13. solve.
Answer by flame8855(424) (Show Source): You can put this solution on YOUR website!
let x and y be the two numbers
x+y = 29
x-y = 13
solve simultaneously
x+y +x -y = 29 + 13
2x=42
x= 21
x+y = 29
y= 29-x= 29- 21 = 8
x is 21
y is 8
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