300=p-0.30p

Solution for 300=p-0.30p equation:

Simplifying
300 = p + -0.30p

Combine like terms: p + -0.30p = 0.7p
300 = 0.7p

Solving
300 = 0.7p

Solving for variable 'p'.

Move all terms containing p to the left, all other terms to the right.

Add '-0.7p' to each side of the equation.
300 + -0.7p = 0.7p + -0.7p

Combine like terms: 0.7p + -0.7p = 0.0
300 + -0.7p = 0.0

Add '-300' to each side of the equation.
300 + -300 + -0.7p = 0.0 + -300

Combine like terms: 300 + -300 = 0
0 + -0.7p = 0.0 + -300
-0.7p = 0.0 + -300

Combine like terms: 0.0 + -300 = -300
-0.7p = -300

Divide each side by '-0.7'.
p = 428.5714286

Simplifying
p = 428.5714286