91=-7(-p-7)

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Solution for 91=-7(-p-7) equation:


Simplifying
91 = -7(-1p + -7)

Reorder the terms:
91 = -7(-7 + -1p)
91 = (-7 * -7 + -1p * -7)
91 = (49 + 7p)

Solving
91 = 49 + 7p

Solving for variable 'p'.

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

Add '-7p' to each side of the equation.
91 + -7p = 49 + 7p + -7p

Combine like terms: 7p + -7p = 0
91 + -7p = 49 + 0
91 + -7p = 49

Add '-91' to each side of the equation.
91 + -91 + -7p = 49 + -91

Combine like terms: 91 + -91 = 0
0 + -7p = 49 + -91
-7p = 49 + -91

Combine like terms: 49 + -91 = -42
-7p = -42

Divide each side by '-7'.
p = 6

Simplifying
p = 6

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