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
