4p+21=12

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Solution for 4p+21=12 equation: 


Simplifying
4p + 21 = 12

Reorder the terms:
21 + 4p = 12

Solving
21 + 4p = 12

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 + 4p = 12 + -21

Combine like terms: 21 + -21 = 0
0 + 4p = 12 + -21
4p = 12 + -21

Combine like terms: 12 + -21 = -9
4p = -9

Divide each side by '4'.
p = -2.25

Simplifying
p = -2.25

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