3x+4y=23
2y-x= -19/ multiply -2
4y + 3x = 23
-4y - 2x = 38
_______________
X = 61
2y - x = -19
2y - 61 = -19
2y = 61 -19
2y = 42
Y = 21
Answer:
Writer Jonah Lehrer has been following the work of several scientists engaged in experiments with the brain and our eureka moments. The studies aim to pinpoint ...
Explanation:
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Refinery gases, Gasoline, Naphtha, Kerosene, Diesel Oil, Fuel Oil, Bitumen, Paraffin wax, Heating Oil, Jet Fuel.
