90=0.9(20+16p)

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Solution for 90=0.9(20+16p) equation:


Simplifying
90 = 0.9(20 + 16p)
90 = (20 * 0.9 + 16p * 0.9)
90 = (18 + 14.4p)

Solving
90 = 18 + 14.4p

Solving for variable 'p'.

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

Add '-14.4p' to each side of the equation.
90 + -14.4p = 18 + 14.4p + -14.4p

Combine like terms: 14.4p + -14.4p = 0.0
90 + -14.4p = 18 + 0.0
90 + -14.4p = 18

Add '-90' to each side of the equation.
90 + -90 + -14.4p = 18 + -90

Combine like terms: 90 + -90 = 0
0 + -14.4p = 18 + -90
-14.4p = 18 + -90

Combine like terms: 18 + -90 = -72
-14.4p = -72

Divide each side by '-14.4'.
p = 5

Simplifying
p = 5

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