21(3-p)=21

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Solution for 21(3-p)=21 equation: 


Simplifying
21(3 + -1p) = 21
(3 * 21 + -1p * 21) = 21
(63 + -21p) = 21

Solving
63 + -21p = 21

Solving for variable 'p'.

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

Add '-63' to each side of the equation.
63 + -63 + -21p = 21 + -63

Combine like terms: 63 + -63 = 0
0 + -21p = 21 + -63
-21p = 21 + -63

Combine like terms: 21 + -63 = -42
-21p = -42

Divide each side by '-21'.
p = 2

Simplifying
p = 2

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