0.7x - 0.4x + 46 = 211

0,3x+46=211 0.3  x =211-46 0.3 x= 165  x= 165/0.3 x=550

[latex]0.7x - 0.4x + 46 = 211 \\ (0.7-0.4)x + 46 = 211 \\ 0.3x + 46 = 211 \\0.3x = 211-46 \\ 0.3x = 165 \\x = 165:0,3 \\x = 550[/latex]