7x+30+9x=42=104

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Solution for 7x+30+9x=42=104 equation: 



7x+30+9x=42=104

We move all terms to the left:

7x+30+9x-(42)=0

We add all the numbers together, and all the variables

16x-12=0

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

16x=12

x=12/16

x=3/4

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