8=2.1x-1.3

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Solution for 8=2.1x-1.3 equation: 



8=2.1x-1.3

We move all terms to the left:

8-(2.1x-1.3)=0

We get rid of parentheses

-2.1x+1.3+8=0

We add all the numbers together, and all the variables

-2.1x+9.3=0

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

-2.1x=-9.3

x=-9.3/-2.1

x=4+0.9/2.1

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