7x+5-9=21

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Solution for 7x+5-9=21 equation: 



7x+5-9=21

We move all terms to the left:

7x+5-9-(21)=0

We add all the numbers together, and all the variables

7x-25=0

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

7x=25

x=25/7

x=3+4/7

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