21-3p=-4p-8(p-6)

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Solution for 21-3p=-4p-8(p-6) equation:


Simplifying
21 + -3p = -4p + -8(p + -6)

Reorder the terms:
21 + -3p = -4p + -8(-6 + p)
21 + -3p = -4p + (-6 * -8 + p * -8)
21 + -3p = -4p + (48 + -8p)

Reorder the terms:
21 + -3p = 48 + -4p + -8p

Combine like terms: -4p + -8p = -12p
21 + -3p = 48 + -12p

Solving
21 + -3p = 48 + -12p

Solving for variable 'p'.

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

Add '12p' to each side of the equation.
21 + -3p + 12p = 48 + -12p + 12p

Combine like terms: -3p + 12p = 9p
21 + 9p = 48 + -12p + 12p

Combine like terms: -12p + 12p = 0
21 + 9p = 48 + 0
21 + 9p = 48

Add '-21' to each side of the equation.
21 + -21 + 9p = 48 + -21

Combine like terms: 21 + -21 = 0
0 + 9p = 48 + -21
9p = 48 + -21

Combine like terms: 48 + -21 = 27
9p = 27

Divide each side by '9'.
p = 3

Simplifying
p = 3

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