2.1x+0.3=7.5

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Solution for 2.1x+0.3=7.5 equation: 



2.1x+0.3=7.5

We move all terms to the left:

2.1x+0.3-(7.5)=0

We add all the numbers together, and all the variables

2.1x-7.2=0

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

2.1x=7.2

x=7.2/2.1

x=3+0.9/2.1

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