The calculations are wrong, I asked 7x + 2 = x + 20, find x and it says X = 18, the right answer is 3, I tried it more than 10 times and of course adjusting the parameters, it gives the same answer, wasting my money

If you take a few seconds and search these forums @ejosephrogo, you will quickly find that this question / issue has been addressed countless times here.

HTH

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