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0.78=0.5x+0.3
We move all terms to the left:
0.78-(0.5x+0.3)=0
We get rid of parentheses
-0.5x-0.3+0.78=0
We add all the numbers together, and all the variables
-0.5x+0.48=0
We move all terms containing x to the left, all other terms to the right
-0.5x=-0.48
x=-0.48/-0.5
x=0.48/0.5
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