15+3p=21+1p

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Solution for 15+3p=21+1p equation:


Simplifying
15 + 3p = 21 + 1p

Solving
15 + 3p = 21 + 1p

Solving for variable 'p'.

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

Add '-1p' to each side of the equation.
15 + 3p + -1p = 21 + 1p + -1p

Combine like terms: 3p + -1p = 2p
15 + 2p = 21 + 1p + -1p

Combine like terms: 1p + -1p = 0
15 + 2p = 21 + 0
15 + 2p = 21

Add '-15' to each side of the equation.
15 + -15 + 2p = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 2p = 21 + -15
2p = 21 + -15

Combine like terms: 21 + -15 = 6
2p = 6

Divide each side by '2'.
p = 3

Simplifying
p = 3

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