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Do you want to change symbols when moving items? Like 3x-7 + 7 = 3-2x-6, I'm bad at math. I don't know anything about symbols
To change, the above formula can be changed to 3x + 2x = - 3, because: - 7 + 7 = 0, and because: 3-6 = - 3 2x moved to the left is the equal sign, and a 2x is added to the left and right at the same time. The right side of the equal sign is - 2x + 2x = 0, and the left side of the equal sign becomes 3x + 2x. There is doubt about adding 1242153792
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