Answer:
y=1-2x
x=2
(x,y)=(2,-3)
Step-by-step explanation:
Answer:
18
Step-by-step explanation:

That will give you 18 which is the answer
Second answer box, try that
Answer:
2 or 4
Step-by-step explanation:
Since I do not quite understand what you mean by X X, I could think of two answers. If you are doing 5 times X=20, then X = 4, but if you are trying to do 5 times x times x, then x=2.