-3(p-4)=21

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Solution for -3(p-4)=21 equation:


Simplifying
-3(p + -4) = 21

Reorder the terms:
-3(-4 + p) = 21
(-4 * -3 + p * -3) = 21
(12 + -3p) = 21

Solving
12 + -3p = 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 + -3p = 21 + -12

Combine like terms: 12 + -12 = 0
0 + -3p = 21 + -12
-3p = 21 + -12

Combine like terms: 21 + -12 = 9
-3p = 9

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

Simplifying
p = -3

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