What is the question supposed to be?
Wow you are doing great sweetie keep up the good work but the answer is 7-1+510
Subtract 2.1 from both sides:

Add 1.4y to both sides:

Of course, we can rewrite this as

Divide both sides by 1.4

The answer is true. It cannot be negative.
<u><em>hii! how are you? hope you're having a good day! (: i wish you the best. <3 stay strong and stay safe! x</em></u>