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If what you are trying to say is 4x-7=3x then I can help. This is just a simple one step equation.
First you want to get the variables on the same side, so subtract 4x from both sides.
You get -7=-x. Because you have double negatives, you can switch it to 7=x.
WRONG ITS -7, you take a -3x on both side and get 1x=-7
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You need an equal sign to solve for x.
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