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-1.2x+2.5=0.8x+6.5.
We move all terms to the left:
-1.2x+2.5-(0.8x+6.5.)=0
We add all the numbers together, and all the variables
-1.2x-(+0.8x)+2.5=0
We get rid of parentheses
-1.2x-0.8x+2.5=0
We add all the numbers together, and all the variables
-2x+2.5=0
We move all terms containing x to the left, all other terms to the right
-2x=-2.5
x=-2.5/-2
x=1+0.5/2
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