[3-2p]+6=21

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Solution for [3-2p]+6=21 equation:


Simplifying
[3 + -2p] + 6 = 21

Remove brackets around [3 + -2p]
3 + -2p + 6 = 21

Reorder the terms:
3 + 6 + -2p = 21

Combine like terms: 3 + 6 = 9
9 + -2p = 21

Solving
9 + -2p = 21

Solving for variable 'p'.

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

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

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

Combine like terms: 21 + -9 = 12
-2p = 12

Divide each side by '-2'.
p = -6

Simplifying
p = -6

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