3(3+7x)=219

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Solution for 3(3+7x)=219 equation: 



3(3+7x)=219

We move all terms to the left:

3(3+7x)-(219)=0

We add all the numbers together, and all the variables

3(7x+3)-219=0

We multiply parentheses

21x+9-219=0

We add all the numbers together, and all the variables

21x-210=0

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

21x=210

x=210/21

x=10

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