im not sure if im correct but y could be 6 because if u multiply 4 by 6 its 24 and x is 2 so 2 times 2 is 4 and if we subtract 4 from 24 its 20 plus 6 its equals 26
how to show work:
y=6 x=2
4y - 2x + 6 = 26
4x6=24 - 2x +6 =26
24 - 2x2=4 +6 =26
24 - 4 + 6=26
^^ im not sure if that makes sense but that pretty much sums it up