7-81=p

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Solution for 7-81=p equation:


Simplifying
7 + -81 = p

Combine like terms: 7 + -81 = -74
-74 = p

Solving
-74 = 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.
-74 + -1p = p + -1p

Combine like terms: p + -1p = 0
-74 + -1p = 0

Add '74' to each side of the equation.
-74 + 74 + -1p = 0 + 74

Combine like terms: -74 + 74 = 0
0 + -1p = 0 + 74
-1p = 0 + 74

Combine like terms: 0 + 74 = 74
-1p = 74

Divide each side by '-1'.
p = -74

Simplifying
p = -74

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