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1.4+0.5x=0.9x-8.2
We move all terms to the left:
1.4+0.5x-(0.9x-8.2)=0
We get rid of parentheses
0.5x-0.9x+8.2+1.4=0
We add all the numbers together, and all the variables
-0.4x+9.6=0
We move all terms containing x to the left, all other terms to the right
-0.4x=-9.6
x=-9.6/-0.4
x=23+0.4/0.4
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