Question

Someone plz help me plzzzzzz

Answer 1

Answer:

-12

Step-by-step explanation:

To solve for this question, you have to isolate the variable u. To do this, divide both sides by 7/4 to isolate the u. Then your equation should be u= -21 divided by 7/4. This would simplify to -21 times 4/7. This would get you -12. Hope this helps :)