21+8p=-2(4-p)-7

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Solution for 21+8p=-2(4-p)-7 equation:


21+8p=-2(4-p)-7

We simplify the equation to the form, which is simple to understand 
21+8p=-2(4-p)-7

Reorder the terms in parentheses
21+8p=+(-8+2p)-7

Remove unnecessary parentheses
+21+8p=-8+2p-7

We move all terms containing p to the left and all other terms to the right. 
+8p-2p=-8-7-21

We simplify left and right side of the equation. 
+6p=-36

We divide both sides of the equation by 6 to get p. 
p=-6

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