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3x+0.15=0.40
We move all terms to the left:
3x+0.15-(0.40)=0
We add all the numbers together, and all the variables
3x+0.15-(0.4)=0
We add all the numbers together, and all the variables
3x-0.25=0
We move all terms containing x to the left, all other terms to the right
3x=0.25
x=0.25/3
x=0.25/3
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