Question 147063
{{{2.1x+2.8 >=1.3-(x+2)}}} Left hand side is OK, but what happened on the right hand side?
{{{2.1x+2.8 >=1.3-x-2)}}}
{{{2.1x+2.8 >=-x-0.7)}}}
To get rid of the decimals, multiply both sides by 10.
{{{2.1x+2.8 >=-x-0.7)}}}
{{{21x+28 >=-10x-7)}}}
I'll let you take it from there. 
If you get stuck again, re-post a question.