12+3.4x=-5.4x-x

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Solution for 12+3.4x=-5.4x-x equation: 



12+3.4x=-5.4x-x

We move all terms to the left:

12+3.4x-(-5.4x-x)=0

We add all the numbers together, and all the variables

3.4x-(-6.4x)+12=0

We get rid of parentheses

3.4x+6.4x+12=0

We add all the numbers together, and all the variables

9.8x+12=0

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

9.8x=-12

x=-12/9.8

x=-1+2.2/9.8

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