1x+7=2x+9

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Solution for 1x+7=2x+9 equation: 



1x+7=2x+9

We move all terms to the left:

1x+7-(2x+9)=0

We add all the numbers together, and all the variables

x-(2x+9)+7=0

We get rid of parentheses

x-2x-9+7=0

We add all the numbers together, and all the variables

-1x-2=0

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

-x=2

x=2/-1

x=-2

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