7p+3p+5=2p+21

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Solution for 7p+3p+5=2p+21 equation:


Simplifying
7p + 3p + 5 = 2p + 21

Reorder the terms:
5 + 7p + 3p = 2p + 21

Combine like terms: 7p + 3p = 10p
5 + 10p = 2p + 21

Reorder the terms:
5 + 10p = 21 + 2p

Solving
5 + 10p = 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.
5 + 10p + -2p = 21 + 2p + -2p

Combine like terms: 10p + -2p = 8p
5 + 8p = 21 + 2p + -2p

Combine like terms: 2p + -2p = 0
5 + 8p = 21 + 0
5 + 8p = 21

Add '-5' to each side of the equation.
5 + -5 + 8p = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 8p = 21 + -5
8p = 21 + -5

Combine like terms: 21 + -5 = 16
8p = 16

Divide each side by '8'.
p = 2

Simplifying
p = 2

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