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Mathematics, 29.01.2021 21:40 ShahinF7536

Can someone explain to me Linear Equations being equivalent? Why isn't x = -2 and x^2 = 4 equivalent? I don't understand why it is not. Additionally x = 7 and x^2 = 49 is also not equivalent and I cannot figure out why.

Thanks in advance!

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Can someone explain to me Linear Equations being equivalent? Why isn't x = -2 and x^2 = 4 equivalen...
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