2p-18=-21+p

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Solution for 2p-18=-21+p equation:


Simplifying
2p + -18 = -21 + p

Reorder the terms:
-18 + 2p = -21 + p

Solving
-18 + 2p = -21 + p

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.
-18 + 2p + -1p = -21 + p + -1p

Combine like terms: 2p + -1p = 1p
-18 + 1p = -21 + p + -1p

Combine like terms: p + -1p = 0
-18 + 1p = -21 + 0
-18 + 1p = -21

Add '18' to each side of the equation.
-18 + 18 + 1p = -21 + 18

Combine like terms: -18 + 18 = 0
0 + 1p = -21 + 18
1p = -21 + 18

Combine like terms: -21 + 18 = -3
1p = -3

Divide each side by '1'.
p = -3

Simplifying
p = -3

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