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Populaire Word Problems >

the sum of 2 numbers is 30 and their différence is 12. find the two numbers

Solution

t h e s u m o f 2 n u mb ers i s 30 an d t h e i r d i ff ere n ce i s 12. f in d t h e tw o n u mb ers

Solution

The numbers : 21, 9

étapes des solutions

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 30

x - y = 12

x + y = 30, x - y = 12 : x = 21, y = 9

The numbers : 21, 9

Exemples populaires

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