2,7/9=1 1/5/3x+1 решите плиз

2,7 / 9 = 1 1/5 / (3х + 1)0,3 = 1,2 / (3х + 1)0,3(3х + 1) = 1,23х + 1 = 1,2/0,33х + 1 = 43х = 4 - 13х = 3х = 3 / 3х = 1