5+7+9p=-21

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Solution for 5+7+9p=-21 equation: 


Simplifying
5 + 7 + 9p = -21

Combine like terms: 5 + 7 = 12
12 + 9p = -21

Solving
12 + 9p = -21

Solving for variable 'p'.

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

Add '-12' to each side of the equation.
12 + -12 + 9p = -21 + -12

Combine like terms: 12 + -12 = 0
0 + 9p = -21 + -12
9p = -21 + -12

Combine like terms: -21 + -12 = -33
9p = -33

Divide each side by '9'.
p = -3.666666667

Simplifying
p = -3.666666667

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