7*9x+3=21

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Solution for 7*9x+3=21 equation: 



7*9x+3=21

We move all terms to the left:

7*9x+3-(21)=0

We add all the numbers together, and all the variables

7*9x-18=0

Wy multiply elements

63x-18=0

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

63x=18

x=18/63

x=2/7

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