Question 333424
{{{0.9x+9<=1.7x-8}}}
..
add -9 to both sides
{{{0.9x+9-9<=1.7x-9-8}}}
{{{0.9x<=1.7x-17}}}
add -1.7x to both sides
{{{0.9x-1.7x<=1.7x-1.7x-17}}}
{{{-0.8x<=-17}}}
divide by -0.8
{{{(-0.08x)/(-0.08)>=(-17)/(-0.8)}}}
{{{x>=85/4 }}}