12-9=p

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Solution for 12-9=p equation:


Simplifying
12 + -9 = p

Combine like terms: 12 + -9 = 3
3 = p

Solving
3 = 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.
3 + -1p = p + -1p

Combine like terms: p + -1p = 0
3 + -1p = 0

Add '-3' to each side of the equation.
3 + -3 + -1p = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1p = 0 + -3
-1p = 0 + -3

Combine like terms: 0 + -3 = -3
-1p = -3

Divide each side by '-1'.
p = 3

Simplifying
p = 3

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