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1.2x+4.3=2.1-x-
We move all terms to the left:
1.2x+4.3-(2.1-x-)=0
We add all the numbers together, and all the variables
1.2x-(-1x)+4.3=0
We get rid of parentheses
1.2x+1x+4.3=0
We add all the numbers together, and all the variables
2.2x+4.3=0
We move all terms containing x to the left, all other terms to the right
2.2x=-4.3
x=-4.3/2.2
x=-1+1/1.04761904762
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