3(-p+3)=-21+2p

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Solution for 3(-p+3)=-21+2p equation:


Simplifying
3(-1p + 3) = -21 + 2p

Reorder the terms:
3(3 + -1p) = -21 + 2p
(3 * 3 + -1p * 3) = -21 + 2p
(9 + -3p) = -21 + 2p

Solving
9 + -3p = -21 + 2p

Solving for variable 'p'.

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

Add '-2p' to each side of the equation.
9 + -3p + -2p = -21 + 2p + -2p

Combine like terms: -3p + -2p = -5p
9 + -5p = -21 + 2p + -2p

Combine like terms: 2p + -2p = 0
9 + -5p = -21 + 0
9 + -5p = -21

Add '-9' to each side of the equation.
9 + -9 + -5p = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -5p = -21 + -9
-5p = -21 + -9

Combine like terms: -21 + -9 = -30
-5p = -30

Divide each side by '-5'.
p = 6

Simplifying
p = 6

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