2p=p-21

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Solution for 2p=p-21 equation: 


Simplifying
2p = p + -21

Reorder the terms:
2p = -21 + p

Solving
2p = -21 + p

Solving for variable 'p'.

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

Add '-1p' to each side of the equation.
2p + -1p = -21 + p + -1p

Combine like terms: 2p + -1p = 1p
1p = -21 + p + -1p

Combine like terms: p + -1p = 0
1p = -21 + 0
1p = -21

Divide each side by '1'.
p = -21

Simplifying
p = -21

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