3p+21=-6

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Solution for 3p+21=-6 equation: 


Simplifying
3p + 21 = -6

Reorder the terms:
21 + 3p = -6

Solving
21 + 3p = -6

Solving for variable 'p'.

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

Add '-21' to each side of the equation.
21 + -21 + 3p = -6 + -21

Combine like terms: 21 + -21 = 0
0 + 3p = -6 + -21
3p = -6 + -21

Combine like terms: -6 + -21 = -27
3p = -27

Divide each side by '3'.
p = -9

Simplifying
p = -9

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