Question

12) Află numărul necunoscut :
a)(48:6:4*5+63:7:3*8)+a=100-(9*9-71):2*8



B)a-(72:9*3:6+60:10*6:9)=5*2*10+100:10:5*8-64:8:2*9:6

Vă roog cât mai repede

Answer 1

a) (8:20+9:24)+a=100-10:16 =>0,775+a=99,375 =>a=99,375-0,775 => a=98,6
b) a-(72:4,5+36:9)=100+16-6 =>a-20=110 =>a=110+20 =>a=130