Question

2×(5×a-16,3)+14,82=59,4​

Answer 1

Răspuns:  a = 7,718

Explicație pas cu pas:

2 × ( 5 × a - 16,3 ) + 14,82 = 59,4

2 × ( 5 × a - 16,3 ) = 59,4 - 14,82

2 × ( 5 × a - 16,3 ) = 44,58

5 × a - 16,3 = 44,58 : 2

5 × a - 16,3 = 22,29

5 × a = 22,29 + 16.3

5 × a = 38,59

a = 38,59 : 5

a = 7,718

_________________

Verific

2 × ( 5 × 7,718 - 16,3) + 14,82 = 2 × (38,59 - 16,3) + 14,82 =

=  2 × 22,29 + 14,82 = 44,58 + 14,82 = 59,4