21=6p+9

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Solution for 21=6p+9 equation:


Simplifying
21 = 6p + 9

Reorder the terms:
21 = 9 + 6p

Solving
21 = 9 + 6p

Solving for variable 'p'.

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

Add '-6p' to each side of the equation.
21 + -6p = 9 + 6p + -6p

Combine like terms: 6p + -6p = 0
21 + -6p = 9 + 0
21 + -6p = 9

Add '-21' to each side of the equation.
21 + -21 + -6p = 9 + -21

Combine like terms: 21 + -21 = 0
0 + -6p = 9 + -21
-6p = 9 + -21

Combine like terms: 9 + -21 = -12
-6p = -12

Divide each side by '-6'.
p = 2

Simplifying
p = 2

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