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0.3x+0.4x=0.6x-3
We move all terms to the left:
0.3x+0.4x-(0.6x-3)=0
We add all the numbers together, and all the variables
0.7x-(0.6x-3)=0
We get rid of parentheses
0.7x-0.6x+3=0
We add all the numbers together, and all the variables
0.1x+3=0
We move all terms containing x to the left, all other terms to the right
0.1x=-3
x=-3/0.1
x=-30
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