Asked by mike
the difference between two numbers is 7. the larger number is 9 less than 3 times the smaller. find the numbers
Answers
Answered by
PsyDAG
Let a = smaller and b = larger number.
a = b - 7
3a - 9 = b
Substitute b-7 for a in the second equation and solve for b. Put that value in the first equation to find a. To Check, put both values into the second equation.
a = b - 7
3a - 9 = b
Substitute b-7 for a in the second equation and solve for b. Put that value in the first equation to find a. To Check, put both values into the second equation.
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