Answer:
The system solution is (20, 0)
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
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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).