0.4x+0.9=0.7x-0.9

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Solution for 0.4x+0.9=0.7x-0.9 equation: 



0.4x+0.9=0.7x-0.9

We move all terms to the left:

0.4x+0.9-(0.7x-0.9)=0

We get rid of parentheses

0.4x-0.7x+0.9+0.9=0

We add all the numbers together, and all the variables

-0.3x+1.8=0

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

-0.3x=-1.8

x=-1.8/-0.3

x=6+2.2204460492503E-16/0.3

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