Question

18-2x(4 3) what would be the total of this problem

Answer 1

I don't really understand your question but I did the best I could.
=18-14x

Answer 2

assuming you forgot the plus sign and you had that as multiply so your eqaiton is
18-2 times (4+3)

pemdas
parenthases first
addd
4+3=7

now we has
18-2 times 7
multiply
2 times 7=14

now we have
18-14
4

result is 4