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3.14(9x/10)=3.14(7x)
We move all terms to the left:
3.14(9x/10)-(3.14(7x))=0
We add all the numbers together, and all the variables
3.14(+9x/10)-(+3.147x)=0
We multiply parentheses
28.26x-(+3.147x)=0
We get rid of parentheses
28.26x-3.147x=0
We add all the numbers together, and all the variables
25.113x=0
x=0/25.113
x=0
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