7-5x=21

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Solution for 7-5x=21 equation: 



7-5x=21

We move all terms to the left:

7-5x-(21)=0

We add all the numbers together, and all the variables

-5x-14=0

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

-5x=14

x=14/-5

x=-2+4/5

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