Question

VAAA IMPLOOOR. DETERMINATI NUMARUL NECUNOSCUT DIN PROPORTIILE. VAaa implooooooor. AMMMM NEEEVOOOIEEE URGEEEEEEEEENT. DAAAAU COOOROOOOAAANAAAA VAAAAA AIMPLOOOOORRR. DAAAAU COOOROOAAANAAAA PROOOOMIIIIT​

Answer 1

Explicație pas cu pas:

c)3/5=2x-7/9

5(2x-7)=3×9

10x-35=27

10x=27+35

x=62÷10

x=31/5(ca sa înțelegi am simplificat prin 2 )

d)3x+4/7=11/5

5(3x+4)=7×11

15x+20=77

15×=77-20

15x=57

x=57/15

x=19/5(am simplificat prin 3 )

e) 5x+1/2=4/3

3(5x+1)=4×2

15x+3=8

15x=8-3

15x=5

x=5/15

x=1/3(am simplificat prin 5 )