(a) 0.2x +0.5y = 3.5
7x - y = 5
solve by elimination method ​

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

or

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answer: math isn’t just mysterious because the majority of us find it so difficult to understand – it’s also the basis of the universe, giving us clues to physical phenomena like the motion of gases in the atmosphere and the way that physical particles interact with each other amid all the possible variables in three-dimensional space.