5+2.5x=21

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Solution for 5+2.5x=21 equation: 



5+2.5x=21

We move all terms to the left:

5+2.5x-(21)=0

We add all the numbers together, and all the variables

2.5x-16=0

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

2.5x=16

x=16/2.5

x=6+1/2.5

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