Answer:
4
Step-by-step explanation:
Distribute the numbers
2(2+5x)+4(1-8x)=-80
= 4+10x+4-32x=-80
Clean Up
= (4+4)+(10x-32x)=-80
= 8-22x=-80
subtract 8 from both sides.
=-22x=-80-8
=-22x=-88
divide -22 from both sides
=x=-88/-22
x= 4
x= positive 4