7-3x=2x-4(21x)

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Solution for 7-3x=2x-4(21x) equation:



7-3x=2x-4(21x)
We move all terms to the left:
7-3x-(2x-4(21x))=0
We add all the numbers together, and all the variables
-3x-(-419x)+7=0
We get rid of parentheses
-3x+419x+7=0
We add all the numbers together, and all the variables
416x+7=0
We move all terms containing x to the left, all other terms to the right
416x=-7
x=-7/416
x=-7/416

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