2p-3(5-2p)=5(p-3)-21

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Solution for 2p-3(5-2p)=5(p-3)-21 equation:


Simplifying
2p + -3(5 + -2p) = 5(p + -3) + -21
2p + (5 * -3 + -2p * -3) = 5(p + -3) + -21
2p + (-15 + 6p) = 5(p + -3) + -21

Reorder the terms:
-15 + 2p + 6p = 5(p + -3) + -21

Combine like terms: 2p + 6p = 8p
-15 + 8p = 5(p + -3) + -21

Reorder the terms:
-15 + 8p = 5(-3 + p) + -21
-15 + 8p = (-3 * 5 + p * 5) + -21
-15 + 8p = (-15 + 5p) + -21

Reorder the terms:
-15 + 8p = -15 + -21 + 5p

Combine like terms: -15 + -21 = -36
-15 + 8p = -36 + 5p

Solving
-15 + 8p = -36 + 5p

Solving for variable 'p'.

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

Add '-5p' to each side of the equation.
-15 + 8p + -5p = -36 + 5p + -5p

Combine like terms: 8p + -5p = 3p
-15 + 3p = -36 + 5p + -5p

Combine like terms: 5p + -5p = 0
-15 + 3p = -36 + 0
-15 + 3p = -36

Add '15' to each side of the equation.
-15 + 15 + 3p = -36 + 15

Combine like terms: -15 + 15 = 0
0 + 3p = -36 + 15
3p = -36 + 15

Combine like terms: -36 + 15 = -21
3p = -21

Divide each side by '3'.
p = -7

Simplifying
p = -7

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