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If that's supposed to be a multiplication, the "x" doesn't have a value - it's an operator. The whole expression, on the other hand, does have a value (just do the multiplication).If the "x" is supposed to be an exponent, then it doesn't have a specific value; that is, it may have any value.

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If you mean: 7x = 42 then x = 6 because 42/7 = 6

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Q: What is the value of x in 7x42 and why?
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