Question

2. Rezolvați ecuatiile:

a) (2,6÷0,13+0,5×8,1)× x =33,67

b) {26,11-[27,225-(96,096÷
1,32-129,49÷2,3)÷1,5]÷ x }÷12=1,03

c) (23,23÷0,23+2,48×1,25)
× x =239,43

d) {15,809+[16,54+(1833,93
÷63,9-14,51)÷47,3]÷ x }÷
127,75=0.13

Dau coroana dacă ma ajutați!!

Answer 1

a. (20+4,05)•x=33,67
24,05 •x=33,67
x=33,67:24,05
x=1,4

b. {26,11-[27,225-(72,8-56,3):1,5 ]:x}:12=1,03
[26,11-(27,225-16,5:1,5):x]=1,03•12
[26,11-(27,225-11):x]=12,36
(26,11-16,225:x)=12,36
16,225:x =12,36+26,11
16,225:x=38,47
x=38,47•16,225
x=624,175

c. (101+3,1)•x=239,43
104,1•x=239,43
x=239,43:104,1
x=2,3
Sper ca te -am ajutat :))