P(x)=300-0.4x

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Solution for P(x)=300-0.4x equation: 



(P)=300-0.4P

We move all terms to the left:

(P)-(300-0.4P)=0

We add all the numbers together, and all the variables

P-(-0.4P+300)=0

We get rid of parentheses

P+0.4P-300=0

We add all the numbers together, and all the variables

1.4P-300=0

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

1.4P=300

P=300/1.4

P=214+0.4/1.4

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