p-1=7-p

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Solution for p-1=7-p equation:


Simplifying
p + -1 = 7 + -1p

Reorder the terms:
-1 + p = 7 + -1p

Solving
-1 + p = 7 + -1p

Solving for variable 'p'.

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

Add 'p' to each side of the equation.
-1 + p + p = 7 + -1p + p

Combine like terms: p + p = 2p
-1 + 2p = 7 + -1p + p

Combine like terms: -1p + p = 0
-1 + 2p = 7 + 0
-1 + 2p = 7

Add '1' to each side of the equation.
-1 + 1 + 2p = 7 + 1

Combine like terms: -1 + 1 = 0
0 + 2p = 7 + 1
2p = 7 + 1

Combine like terms: 7 + 1 = 8
2p = 8

Divide each side by '2'.
p = 4

Simplifying
p = 4

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