1) 0.11x + 0.08x = 45.6          2) 7x + 9x + 0.32 = 2.72   3) 0.8(x -1.9) = 0.56

0,19х = 45,6х = 24016х = 2,4х = 0,150,8х-1,52 = 0,560,8х = 2,08х = 2,6

0.11x + 0.08x = 45.6  0,19х=45,6х=2407x + 9x + 0.32 = 2.72 16х=2,72-0,3216х=2,4х=0,150.8(x -1.9) = 0.560,8х-1,52=0,560,8х=0,56+1,520,8х=2,08х=2,6