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

Question

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

Answer 1

0,19х = 45,6
х = 240

16х = 2,4
х = 0,15

0,8х-1,52 = 0,56
0,8х = 2,08
х = 2,6

Answer 2

0.11x + 0.08x = 45.6 
0,19х=45,6
х=240


7x + 9x + 0.32 = 2.72
16х=2,72-0,32
16х=2,4
х=0,15


0.8(x -1.9) = 0.56
0,8х-1,52=0,56
0,8х=0,56+1,52
0,8х=2,08
х=2,6