5x+3(7x-3)=121

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Solution for 5x+3(7x-3)=121 equation: 



5x+3(7x-3)=121

We move all terms to the left:

5x+3(7x-3)-(121)=0

We multiply parentheses

5x+21x-9-121=0

We add all the numbers together, and all the variables

26x-130=0

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

26x=130

x=130/26

x=5

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