Question

2+10×((7×(15-2×a)-16)×5-3)=222 cine stie va rog ajutati-ma dau coroana !!!

Answer 1

2+10* {[7*(15-2 *a) - 16) * 5-3}=222
10*{[105-14*7a - 16] *5-3}= 220
[105-14*7a-16]*5-3=22
[105-48a-16]*5=25
89-48a-16=5
89-48a=21
-48a=21-89
-48a=-68
a= (-68) : (-48)
a= 1,4(6)7