(-1)-1=p-21

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Solution for (-1)-1=p-21 equation:


Simplifying
(-1) + -1 = p + -21
-1 + -1 = p + -21

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

Reorder the terms:
-2 = -21 + p

Solving
-2 = -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.
-2 + -1p = -21 + p + -1p

Combine like terms: p + -1p = 0
-2 + -1p = -21 + 0
-2 + -1p = -21

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

Combine like terms: -2 + 2 = 0
0 + -1p = -21 + 2
-1p = -21 + 2

Combine like terms: -21 + 2 = -19
-1p = -19

Divide each side by '-1'.
p = 19

Simplifying
p = 19

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