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3.4x+54.6=5.7-12.9x
We move all terms to the left:
3.4x+54.6-(5.7-12.9x)=0
We add all the numbers together, and all the variables
3.4x-(-12.9x+5.7)+54.6=0
We get rid of parentheses
3.4x+12.9x-5.7+54.6=0
We add all the numbers together, and all the variables
16.3x+48.9=0
We move all terms containing x to the left, all other terms to the right
16.3x=-48.9
x=-48.9/16.3
x=-3+-7.1054273576E-15/16.3
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