x=-31.5 or x=-32.0 is the right answer. First you had to multiply by -1.5 from both sides of equation. And it gave us, [tex]\frac{x(-1.5)}{-1.5}=21(-1.5)[/tex]. And finally simplify, and it gave us the answer is x=-31.5. You can also round up to the nearest tenths is x=-32.0. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie
