2.1x-2=7+0.9x

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Solution for 2.1x-2=7+0.9x equation: 



2.1x-2=7+0.9x

We move all terms to the left:

2.1x-2-(7+0.9x)=0

We add all the numbers together, and all the variables

2.1x-(0.9x+7)-2=0

We get rid of parentheses

2.1x-0.9x-7-2=0

We add all the numbers together, and all the variables

1.2x-9=0

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

1.2x=9

x=9/1.2

x=7+0.6/1.2

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