-2(x+20)<10-10(1+x)
-2x - 40 < -10x add 2x to both sides
-40 < -8x divide both sides by -8
x < 5
-2x-20<10-10-10x
8x-20<0
8x<20
x<2.5
Sorry Landry but guest is correct.
-40 <-8x
5> x
x <5