Question

.b) 40+90÷[9+48:(a+6)]=46

dau coroana ​​​

Answer 1

Răspuns:

• a = 2

Explicație pas cu pas:

40+90÷[9+48:(a+6)]=46

90÷[9+48:(a+6)]=46-40

90÷[9+48:(a+6)]=6

9+48:(a+6)=90:6

9+48:(a+6)=15

48:(a+6)=15-9

48:(a+6)=6

a+6=48:6

a+6=8

a=8-6

a=2

Answer 2

$\it 40+90:[9+48:(a+6)]=46\Big|_{-40} \Rightarrow 90:[9+48:(a+6)]=6 \Rightarrow\\ \\ \Rightarrow 9+48:(a+6)=90:6 \Rightarrow 9+48:(a+6)=15 \Big|_{-9} \Rightarrow 48:(a+6)=6 \Rightarrow \\ \\ \Rightarrow a+6=48:6 \Rightarrow a+6=8 \Rightarrow a=2$