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6.77+9x=47.45
We move all terms to the left:
6.77+9x-(47.45)=0
We add all the numbers together, and all the variables
9x-40.68=0
We move all terms containing x to the left, all other terms to the right
9x=40.68
x=40.68/9
x=4+2.7857142857143/5.3571428571429
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