Question

what's the solution for 4-7x=18

Answer 1

Here are the basic steps on how to do it.
4-7x=18
Now you move the 4 onto the other side of the equal bars.
4-4-7x=18-4
Do the total.
-7x=14
Now you divide 14 by -7.
x=-2
There you have it.
Hope this helps!

Answer 2

$4-7x=18\\ -7x=14\\ x=-2$