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3x+.50+x+x+.10=7.50
We move all terms to the left:
3x+.50+x+x+.10-(7.50)=0
We add all the numbers together, and all the variables
3x+x+x+.50+.10-(7.5)=0
We add all the numbers together, and all the variables
5x-6.9=0
We move all terms containing x to the left, all other terms to the right
5x=6.9
x=6.9/5
x=1+1/2.6315789473684
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