All you have to do is move the denominator on the other side, by multiplying.
a-10
------- = -9
20
multiply 20 x -9
= -180
then it becomes a-10=-180
+10 +10
a=-170
Answer is 22.25, hope this helps!!
Answer:
the answer is 9 teachers
Step-by-step explanation:
step one is 135-90=?
step two is if 1 teachers for 15 students
2 techers are for 30 students until you get to 135
Answer: did u find the answer ? I’m stuck on the same problem lol
Step-by-step explanation:
