Question

3•(3к -2/3)-0,8•(6+2х)=13.4

Answer 1

$3(3x - \frac{2}{3} ) - 0.8(6 + 2x) = 13.4 \\ 9x - 2 - 4.8 - 1.6x = 13.4 \\ 7.4x = 13.4 + 6.8 \\ 7.4x = 20.2 \\ x = \frac{20.2}{7.4} \\ x = \frac{101}{37} \\ x = 2 \frac{27}{37}$