b) 36:(24-x)+29=7×5
36:(24-x)=35-29
36:(24-x)=6
24-x=36:6
24-x=6
x=18
c) t:(282:6-39)=9
t:(47-39)=9
t:8=9
t=72
d)[(a+4)x3]+3=5×6
(a+4)×3=30-3
a+4=27:3
a+4=9
a=5
e)(y:5-4):3-130=1
(y:5-4):3=130+1
y:5-4=131×3
y:5-4=393
y:5=393+4
y:5=397
y=5×397
y=1985
Sper ca te-am ajutat!!