Question

[(a x2-40):(20-18)]x5-16=24 Va rog frumos rapid​

Answer 1

a=28
Explicație:
[(a*2-40):2]*5=40
(a*2-40):2=8
a*2-40=16
a*2=56
a=28

Answer 2

Răspuns:

Salut

[(a*2-40):(20-18)]*5-16=24

[(2a-40):2]*5-16=24

2a-40/2 *5-16=24

2(a-20)/2 *5-16=24

(a-20)*5-16=24

5a-100-16=24

5a-116=24

5a=24+116

5a=140

a = 28.