Answer:
Sum he wasn't suupposed to be doing....... ;-;
Step-by-step explanation:
We start with:
-10 = xy + z
When you want to solve for a certain variable, you generally follow pemdas in reverse, so subtract z from both sides first:
-10 - z = xy
And finally, divide both sides by y:
(-10 - z)/y = x
and there we go! sorry for the badly typed equations, I'm on my phone so there's only so much a can do :( hope I helped, and let me know if you have any questions!
7/10 + 4/5
- Make 4/5 have a common denominator with 7/10 by multiplying 4/5 by 2/2.
Add 7/10 and 8/10.
Simplify 15/10 by dividing both sides by 5/5.
- 15/10 ÷ 5/5 = <u>3/2 </u>or<u> 1 1/2</u>
