3x+21=64

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Solution for 3x+21=64 equation: 



3x+21=64

We move all terms to the left:

3x+21-(64)=0

We add all the numbers together, and all the variables

3x-43=0

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

3x=43

x=43/3

x=14+1/3

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