15+21x=63

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Solution for 15+21x=63 equation: 



15+21x=63

We move all terms to the left:

15+21x-(63)=0

We add all the numbers together, and all the variables

21x-48=0

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

21x=48

x=48/21

x=2+2/7

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