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