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3.9x=14.5+6.8x
We move all terms to the left:
3.9x-(14.5+6.8x)=0
We add all the numbers together, and all the variables
3.9x-(6.8x+14.5)=0
We get rid of parentheses
3.9x-6.8x-14.5=0
We add all the numbers together, and all the variables
-2.9x-14.5=0
We move all terms containing x to the left, all other terms to the right
-2.9x=14.5
x=14.5/-2.9
x=-5
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