3x+(12x-30)=180

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Solution for 3x+(12x-30)=180 equation: 



3x+(12x-30)=180

We move all terms to the left:

3x+(12x-30)-(180)=0

We get rid of parentheses

3x+12x-30-180=0

We add all the numbers together, and all the variables

15x-210=0

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

15x=210

x=210/15

x=14

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