Question

(324:6+345:5)x2+1237=43xA+1354
si
[48+50x100:(28:a+6)-14]x[(50-20)+(143-24)=42316

Va rog mult.​

Answer 1

Răspuns:

(324:6+345:5)x2+1237=43xA+1354

(54+69)·2+1237=43A+1354

123·2+1237=43A+1354

1483=43A+1354

1483-1354=43A

129=43A

A=129:43

A=3

___________

[48+5000:(28:a+6)-14]x[(50-20)+(143-24)]=42316

[48+5000:28:a+6)-14]·(30+119)=42316

[48+5000:(28:a+6)-14]·149=42316

48+5000:(28:a+6)-14=42316:149

48+5000:(28:a+6)=284+14

5000:(28:a+6)=298-48

28:a+6=5000:250

28:a=20-6

a=28:14

a=2