Answer:
3
Step-by-step explanation:
5-2x=-1
(x is your number)
5-5=0
-1-5=-6
-2x=-6
-2x/-2=x
-6/-2=3
x=3
Answer:

Step-by-step explanation:
We want to solve for x in 
You need to group and combine like terms and write in standard form:


By comparing to
, we a=1,b=-2 and c=-46
The solution can be obtained using the quadratic formula.

We substitute the coefficients to get:





The last choice is correct
Answer: -2.10
Step-by-step explanation:
just took the test