8+2p-5=7p+21-3p

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Solution for 8+2p-5=7p+21-3p equation:


Simplifying
8 + 2p + -5 = 7p + 21 + -3p

Reorder the terms:
8 + -5 + 2p = 7p + 21 + -3p

Combine like terms: 8 + -5 = 3
3 + 2p = 7p + 21 + -3p

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

Combine like terms: 7p + -3p = 4p
3 + 2p = 21 + 4p

Solving
3 + 2p = 21 + 4p

Solving for variable 'p'.

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

Add '-4p' to each side of the equation.
3 + 2p + -4p = 21 + 4p + -4p

Combine like terms: 2p + -4p = -2p
3 + -2p = 21 + 4p + -4p

Combine like terms: 4p + -4p = 0
3 + -2p = 21 + 0
3 + -2p = 21

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

Combine like terms: 3 + -3 = 0
0 + -2p = 21 + -3
-2p = 21 + -3

Combine like terms: 21 + -3 = 18
-2p = 18

Divide each side by '-2'.
p = -9

Simplifying
p = -9

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