x+0.4=0.3x-1

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Solution for x+0.4=0.3x-1 equation: 



x+0.4=0.3x-1

We move all terms to the left:

x+0.4-(0.3x-1)=0

We get rid of parentheses

x-0.3x+1+0.4=0

We add all the numbers together, and all the variables

0.7x+1.4=0

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

0.7x=-1.4

x=-1.4/0.7

x=-2

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