7+9x=12-1x

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Solution for 7+9x=12-1x equation: 



7+9x=12-1x

We move all terms to the left:

7+9x-(12-1x)=0

We add all the numbers together, and all the variables

9x-(-1x+12)+7=0

We get rid of parentheses

9x+1x-12+7=0

We add all the numbers together, and all the variables

10x-5=0

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

10x=5

x=5/10

x=1/2

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