Question

{[1260:(201-3a)+5]×3-18}=2×3​

Answer 1

Răspuns:

$a=\frac{97}{6}$, a=16.1(6)

Explicație pas cu pas:

{[1260:(201-3a)+5]·3-18}=2·3

$[\frac{1260}{(201-3a)+5} ]*3-18=6$

$[(\frac{3780}{-3a+206} )]-18=6|*-3a+206$

3780-18(-3a+206)=6(-3a+206)

54a+72=-18a+1236 | -72

54a=-18a+1164 | +18a

72a=1164 | :72

$\frac{72a}{72} =\frac{1164}{72}$simplificam cu 12

$a=\frac{97}{6}$

a=16.1(6) = 16.16666666-pana la infinit

Succes! :)