21x+42=14(7)

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Solution for 21x+42=14(7) equation: 



21x+42=14(7)

We move all terms to the left:

21x+42-(14(7))=0

determiningTheFunctionDomain
21x+42-147=0

We add all the numbers together, and all the variables

21x-105=0

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

21x=105

x=105/21

x=5

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