2.1=4.9-0.4x

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Solution for 2.1=4.9-0.4x equation: 



2.1=4.9-0.4x

We move all terms to the left:

2.1-(4.9-0.4x)=0

We add all the numbers together, and all the variables

-(-0.4x+4.9)+2.1=0

We get rid of parentheses

0.4x-4.9+2.1=0

We add all the numbers together, and all the variables

0.4x-2.8=0

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

0.4x=2.8

x=2.8/0.4

x=6+0.4/0.4

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