Question

Va rog dau coroana si 30 puncte​

Answer 1

Răspuns:

Explicație pas cu pas:

b)1/4(2x-6/3)+=3x-1/4

2x-6/12+x/6=3x-1/4

2x-6/12+2x/12=9x-3/12 | · 12

2x-6+2x=9x-3

2x+2x-9x=-3+6

-5x=3

x=-3/5

d)7/8(x-5/2·6/5)=9/2+8/3:8/9

7/8(x-1/3)=9/2+8/3·9/8

7/8(3x-1/3)=9/2+1/3

21x-7/24=29/6

21x-7/24=116/24 | · 24

21x-7=116

21x=123

x=123/21

x=41/7