81=-3(5p-7)+3p

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Solution for 81=-3(5p-7)+3p equation: 


Simplifying
81 = -3(5p + -7) + 3p

Reorder the terms:
81 = -3(-7 + 5p) + 3p
81 = (-7 * -3 + 5p * -3) + 3p
81 = (21 + -15p) + 3p

Combine like terms: -15p + 3p = -12p
81 = 21 + -12p

Solving
81 = 21 + -12p

Solving for variable 'p'.

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

Add '12p' to each side of the equation.
81 + 12p = 21 + -12p + 12p

Combine like terms: -12p + 12p = 0
81 + 12p = 21 + 0
81 + 12p = 21

Add '-81' to each side of the equation.
81 + -81 + 12p = 21 + -81

Combine like terms: 81 + -81 = 0
0 + 12p = 21 + -81
12p = 21 + -81

Combine like terms: 21 + -81 = -60
12p = -60

Divide each side by '12'.
p = -5

Simplifying
p = -5

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