21=-2p-5

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Solution for 21=-2p-5 equation:


Simplifying
21 = -2p + -5

Reorder the terms:
21 = -5 + -2p

Solving
21 = -5 + -2p

Solving for variable 'p'.

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

Add '2p' to each side of the equation.
21 + 2p = -5 + -2p + 2p

Combine like terms: -2p + 2p = 0
21 + 2p = -5 + 0
21 + 2p = -5

Add '-21' to each side of the equation.
21 + -21 + 2p = -5 + -21

Combine like terms: 21 + -21 = 0
0 + 2p = -5 + -21
2p = -5 + -21

Combine like terms: -5 + -21 = -26
2p = -26

Divide each side by '2'.
p = -13

Simplifying
p = -13

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