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-4+1=3x-7x
We move all terms to the left:
-4+1-(3x-7x)=0
We add all the numbers together, and all the variables
-(-4x)-4+1=0
We add all the numbers together, and all the variables
-(-4x)-3=0
We get rid of parentheses
4x-3=0
We move all terms containing x to the left, all other terms to the right
4x=3
x=3/4
x=3/4
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