Question

Rezolvati in Q ecuatia  12,(5)=3*[x-0.3(6)]

Answer 1

125-12/9=3*[x-36-3/90]
113/9=3*(x-33/90)      notam x-33/90=a
113/9=3*a
a=113/9*1/3
a=113/27
x-33/90=113/27
x=113/27+33/90   aducem la acelasi numitor  270
x=1130+99/270
x=1129/270