21=-5p-9

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Solution for 21=-5p-9 equation:


Simplifying
21 = -5p + -9

Reorder the terms:
21 = -9 + -5p

Solving
21 = -9 + -5p

Solving for variable 'p'.

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

Add '5p' to each side of the equation.
21 + 5p = -9 + -5p + 5p

Combine like terms: -5p + 5p = 0
21 + 5p = -9 + 0
21 + 5p = -9

Add '-21' to each side of the equation.
21 + -21 + 5p = -9 + -21

Combine like terms: 21 + -21 = 0
0 + 5p = -9 + -21
5p = -9 + -21

Combine like terms: -9 + -21 = -30
5p = -30

Divide each side by '5'.
p = -6

Simplifying
p = -6

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