0.4x+2.1=0.8x-0.7

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Solution for 0.4x+2.1=0.8x-0.7 equation: 



0.4x+2.1=0.8x-0.7

We move all terms to the left:

0.4x+2.1-(0.8x-0.7)=0

We get rid of parentheses

0.4x-0.8x+0.7+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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