2(x-3)+21=3

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Solution for 2(x-3)+21=3 equation: 



2(x-3)+21=3

We move all terms to the left:

2(x-3)+21-(3)=0

We add all the numbers together, and all the variables

2(x-3)+18=0

We multiply parentheses

2x-6+18=0

We add all the numbers together, and all the variables

2x+12=0

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

2x=-12

x=-12/2

x=-6

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