3.8 * 200,000,000 = 760,000,000 L of oil r recovered
0.5 * 200,000,000 = 100,000,000 kg of steel r recovered
We can write multiple equations that have the same solution.
Two of these equations could be for example:
Equation 1:
10x = 12
Equation 2:
2x-1 = 1.4
Note: when clearing x in both equations we have:
x = 1.2
Answer:
10x = 12
2x-1 = 1.4
Answer:
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