4p-2p+4=-1+21

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Solution for 4p-2p+4=-1+21 equation:


Simplifying
4p + -2p + 4 = -1 + 21

Reorder the terms:
4 + 4p + -2p = -1 + 21

Combine like terms: 4p + -2p = 2p
4 + 2p = -1 + 21

Combine like terms: -1 + 21 = 20
4 + 2p = 20

Solving
4 + 2p = 20

Solving for variable 'p'.

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

Add '-4' to each side of the equation.
4 + -4 + 2p = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 2p = 20 + -4
2p = 20 + -4

Combine like terms: 20 + -4 = 16
2p = 16

Divide each side by '2'.
p = 8

Simplifying
p = 8

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