5x=21-3

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Solution for 5x=21-3 equation: 



5x=21-3

We move all terms to the left:

5x-(21-3)=0

We add all the numbers together, and all the variables

5x-18=0

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

5x=18

x=18/5

x=3+3/5

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