6.4=7.9-0.3x

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Solution for 6.4=7.9-0.3x equation: 



6.4=7.9-0.3x

We move all terms to the left:

6.4-(7.9-0.3x)=0

We add all the numbers together, and all the variables

-(-0.3x+7.9)+6.4=0

We get rid of parentheses

0.3x-7.9+6.4=0

We add all the numbers together, and all the variables

0.3x-1.5=0

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

0.3x=1.5

x=1.5/0.3

x=5

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