Question

Ajutor va rog! REPEDE! ​

Answer 1

Răspuns:

[(a-4.5) x24.3 +15.4] x3.2 =88.16

[(a-4.5) x24.3 +15.4] =88.16 : 3.2= 27.55

(a-4.5) x24.3 =27.55-15.4=12.15

a-4.5 = 12.15 : 24.3

a-4.5=0.5   => a= 4.5+0.5= 5

a=5