P-89=.4P

Solution for P-89=.4P equation:

Simplifying
P + -89 = 0.4P

Reorder the terms:
-89 + P = 0.4P

Solving
-89 + P = 0.4P

Solving for variable 'P'.

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

Add '-0.4P' to each side of the equation.
-89 + P + -0.4P = 0.4P + -0.4P

Combine like terms: P + -0.4P = 0.6P
-89 + 0.6P = 0.4P + -0.4P

Combine like terms: 0.4P + -0.4P = 0.0
-89 + 0.6P = 0.0

Add '89' to each side of the equation.
-89 + 89 + 0.6P = 0.0 + 89

Combine like terms: -89 + 89 = 0
0 + 0.6P = 0.0 + 89
0.6P = 0.0 + 89

Combine like terms: 0.0 + 89 = 89
0.6P = 89

Divide each side by '0.6'.
P = 148.3333333

Simplifying
P = 148.3333333