Question

Pls repede daca puteti sa al faceti macar pe c!! ​

Answer 1

Răspuns:a) 3 supra 5 = x supra 10 ;

3/5=x/10

5*x=3*10

5*x=30

x=30:5

x=6

b) 7 supra x = 21 supra 15 ;

7/x=21/15

21*x=7*15

21*x=105

x=105:21

x=5

c) x+2 supra x+7 = 3x+6 supra 48 .

(x+2)/(x+7)=3(x+2)/48

3(x+2)(x+7)=48(x+2)

3(x+7)=48

x+7=48:3

x+7=16

x=16-7

x=9