3(5x+7)=216

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Solution for 3(5x+7)=216 equation: 



3(5x+7)=216

We move all terms to the left:

3(5x+7)-(216)=0

We multiply parentheses

15x+21-216=0

We add all the numbers together, and all the variables

15x-195=0

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

15x=195

x=195/15

x=13

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