8.4x+2.1=3.4x-0.4

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Solution for 8.4x+2.1=3.4x-0.4 equation: 



8.4x+2.1=3.4x-0.4

We move all terms to the left:

8.4x+2.1-(3.4x-0.4)=0

We get rid of parentheses

8.4x-3.4x+0.4+2.1=0

We add all the numbers together, and all the variables

5x+2.5=0

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

5x=-2.5

x=-2.5/5

x=-2.5/5

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