21x-30=180

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Solution for 21x-30=180 equation: 



21x-30=180

We move all terms to the left:

21x-30-(180)=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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