SOLUTION: The sum of two numbers is 77 and their difference is 1. What is the two numbers? Thank you so much for whoever is helping me
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Question 970728: The sum of two numbers is 77 and their difference is 1. What is the two numbers? Thank you so much for whoever is helping me
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
x and y are 2 numbers
x+y=77
x-y=1 Add the equations.
2x=78
x=39 ANSWER 1: One of the numbers is 39.
.
x-y=1
39-y=1 Add y to each side.
39=1+y Subtract 1 from each side.
38=y ANSWER 2: The other number is 38.
.
CHECK:
x+y=77
39+38=77
77=77
.
x-y=1
39-38=1
1=1
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