rajuboddu rajuboddu
  • 08-09-2017
  • Mathematics
contestada

sum of two numbers is 39. the greater number is 7 more than the smaller number. ( set up an equation )

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Аноним Аноним
  • 08-09-2017
Let the two numbers be x and y with x being the greater number.

Given,

x = 7 + y 

Also given,

x + y = 39

Substituting the value of x from above,

7 + y + y = 39

7 + 2y = 39

2y = 39 - 7

2y = 32

y = [tex] \frac{32}{2} [/tex]

y = 16

x = 7 + y

x = 7 + 16

x = 23

Hence, the two numbers are 23 and  16.
Answer Link
musiclover10045
musiclover10045 musiclover10045
  • 08-09-2017

x + y =39

x = y+7

y+7 +y = 39

2y +7 = 39

2y =32

y = 32/2 = 16

x = 16+7 = 23

Answer Link

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