Answer:
Please see below.
Step-by-step explanation:
Standard form equations are like the following:
ax - by = c
a, b, and c are the numbers, and x and y are the variables.
Let's look at your case.
Here are the equations that fit into the category:
4x + 1/2y = -9
9x - 2y = -6
-x + y = 2 (I'll have to look deeper into that though)
Hope this helps!
Let me know if I've gotten anything incorrect :)
