7+0.8x=0.9x

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Solution for 7+0.8x=0.9x equation: 



7+0.8x=0.9x

We move all terms to the left:

7+0.8x-(0.9x)=0

We add all the numbers together, and all the variables

0.8x-(+0.9x)+7=0

We get rid of parentheses

0.8x-0.9x+7=0

We add all the numbers together, and all the variables

-0.1x+7=0

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

-0.1x=-7

x=-7/-0.1

x=+70

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