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first you would start with the numbers with x. 6x-4x=2x. so you would have 2x. then you would do the other numbers. 8-4=4. so you would have 4. so you would end up with 2x-4. if you are trying to solve for x then you would need an equal sign. for example if you had 2x-4=28, then you would add 4 on both sides.
2x-4=28
+4 +4
2x+32 then you divide 2x and 32 by 2. and you have x=16
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