Solve the system.
0.2x + 0.5y = 4
-0.1x + 0.3y = -2

The system solution is (20, 0)

Step-by-step explanation:

Let's begin by eliminating x.  Multiply the second equation by 2, obtaining

-0.2x + 0.6y = -4, and add this result to the first equation:

0.2x + 0.5y = 4

-0.2x + 0.6y = -4

             1.1y = 0, so y must be 0.

Substituting 0 for y in the first equation, we get:

0.2x + 0 = 4.  Dividing both sides by 0.2, we get x = 20.

The system solution is (20, 0).

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

i dont understand the question? ?

step-by-step explanation: