Question

пж как решить пжтььбтд​

Answer 1

$(x - 0.5) \times 1.2 = 7.2 \\ 1.2x - 0.6 = 7.2 \\ 1.2x = 7.2 + 0.6 \\ 1.2x = 7.8 \\ x = 6.5$