Question

II roman plssss!
Dau funda!Urgent!!​

Answer 1

Răspuns:

Explicație pas cu pas:

(x -2,3)/7 = 5/14

x - 2,3 = 7*5/14 = 5/2

x = 5/2 + 2,3 = 2,5 + 2,3 = 4,8

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4 - 2,(3) = 4 - 7/3 = 12/3 - 7/3 = 5/3

2,(3) = 2 + 3/9 = 2 + 1/3 = 7/3

Answer 2

Explicație pas cu pas:

(1/7) × ( x - 2,3 ) = 5/14

x-2,3=5/2

x=5/2+23/10

x=24/5

________________

x+2,(3)=4

x+(23-2)/9=4

x+21/9=4

x+7/3=4

x=4-7/3

x=5/3