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one number is 1 less than a second number. twice the second number is 7 less than 3 times the first. find the 2 numbers.

Soluzione

one number is 1 less than a second number. twice the second number is 7 less than 3 times the first. find the 2 numbers.

Soluzione

The numbers : 9, 10

Fasi della soluzione

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = y - 1

2 y = 3 x - 7

x = y - 1, 2 y = 3 x - 7 : x = 9, y = 10

The numbers : 9, 10

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