2,1+1,8+x=7,5

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Solution for 2,1+1,8+x=7,5 equation: 



2.1+1.8+x=7.5

We move all terms to the left:

2.1+1.8+x-(7.5)=0

We add all the numbers together, and all the variables

x-3.6=0

We move all terms containing x to the left, all other terms to the right

x=3.6

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