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4.50x+6x=20.70
We move all terms to the left:
4.50x+6x-(20.70)=0
We add all the numbers together, and all the variables
4.50x+6x-(20.7)=0
We add all the numbers together, and all the variables
10.5x-20.7=0
We move all terms containing x to the left, all other terms to the right
10.5x=20.7
x=20.7/10.5
x=1+1/1.0294117647059
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