7x+1+2x+4=12

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Solution for 7x+1+2x+4=12 equation: 



7x+1+2x+4=12

We move all terms to the left:

7x+1+2x+4-(12)=0

We add all the numbers together, and all the variables

9x-7=0

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

9x=7

x=7/9

x=7/9

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