Question

Aflati x numar natural astfel incat
a)32/2x+4 este subunitara
b)2x+3/3x-5 este supraunitara
c)x-3/6=54/18
Dau coronitaa le vreau pe toate Pllzzz si 5 steelee​

Answer 1

Fractie subunitara ex : 3/4

Fractie supraunitara ex : 4/3

a. 32/2x+4

32< 2x+4

32 -4/2x+4 -4=

28/2x=

28÷2/2x÷2=

14/x

x={15,16,17,18,...}

b. NU STIU DACA E BINE

2x+3/3x-5

2x+3 > 3x-5

2x+3/3x-5 =

2x+3+5/3x =

2x+8/3x

2x+8÷3x =Cat,rest 0

2x+8÷3x=1 => x=8

c. x-3/6=54/18

x-3/6=3

x-3÷6=3

x-3=3*6

x-3=18

x=18-3

x=15