9x+4=2x+7=121

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Solution for 9x+4=2x+7=121 equation: 



9x+4=2x+7=121

We move all terms to the left:

9x+4-(2x+7)=0

We get rid of parentheses

9x-2x-7+4=0

We add all the numbers together, and all the variables

7x-3=0

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

7x=3

x=3/7

x=3/7

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