3|-8x|+8=80
-5|3+4x|=-115
and also a few more that the same but with inequality signs

So first you would distribute the 3 into the (-8x) not the +8
-24x+8=80

Now you move the 8 to the other side of the equal sign and subtract

-24x=80-8
-24x=72

Now u divide to solve for x

-24x/-24=72/-24
x=-3