Answer:
think it's the last one
Step-by-step explanation:
sorry if i'm wrong

From any proportion, we get another proportion by inverting the extremes (or the means):

= k
so we have:
2x=3k
2x+y=2k therefore:
3k+y=2k
y= - k
x=


= -

The corect answer is A. -3/2
or:

From any proportion, we get another proportion by inverting the extremes and the means:

We use a property of proportions:

where a, d are extremes and b,c are means and the product of the extremes equals the product of the means (a*d=b*c),
so we have

or

(you can check this also by "the product of the extremes equals the product of the means")



3y = - 2x
In order of the questions:
Q1: -1/2
Q2: -3/4
Q3: -10
Q4: -13
Q5: 21
In order from smallest to largest:
Q4 Q3 Q2 Q1 Q5