(21+9)-(8-4)=p

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Solution for (21+9)-(8-4)=p equation: 



(21+9)-(8-4)=p

We move all terms to the left:

(21+9)-(8-4)-(p)=0

We add all the numbers together, and all the variables

-p+30-4=0

We add all the numbers together, and all the variables

-1p+26=0

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

-p=-26

p=-26/-1

p=+26

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