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23+28x=-21+14x
We move all terms to the left:
23+28x-(-21+14x)=0
We add all the numbers together, and all the variables
28x-(14x-21)+23=0
We get rid of parentheses
28x-14x+21+23=0
We add all the numbers together, and all the variables
14x+44=0
We move all terms containing x to the left, all other terms to the right
14x=-44
x=-44/14
x=-3+1/7
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