7p-(-11p)-18p+20p=20

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Solution for 7p-(-11p)-18p+20p=20 equation: 



7p-(-11p)-18p+20p=20

We move all terms to the left:

7p-(-11p)-18p+20p-(20)=0

We add all the numbers together, and all the variables

9p-(-11p)-20=0

We get rid of parentheses

9p+11p-20=0

We add all the numbers together, and all the variables

20p-20=0

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

20p=20

p=20/20

p=1

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