8p-21=-28+p

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Solution for 8p-21=-28+p equation:


Simplifying
8p + -21 = -28 + p

Reorder the terms:
-21 + 8p = -28 + p

Solving
-21 + 8p = -28 + 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.
-21 + 8p + -1p = -28 + p + -1p

Combine like terms: 8p + -1p = 7p
-21 + 7p = -28 + p + -1p

Combine like terms: p + -1p = 0
-21 + 7p = -28 + 0
-21 + 7p = -28

Add '21' to each side of the equation.
-21 + 21 + 7p = -28 + 21

Combine like terms: -21 + 21 = 0
0 + 7p = -28 + 21
7p = -28 + 21

Combine like terms: -28 + 21 = -7
7p = -7

Divide each side by '7'.
p = -1

Simplifying
p = -1

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