91+p-13=7+8p+8

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Solution for 91+p-13=7+8p+8 equation:


Simplifying
91 + p + -13 = 7 + 8p + 8

Reorder the terms:
91 + -13 + p = 7 + 8p + 8

Combine like terms: 91 + -13 = 78
78 + p = 7 + 8p + 8

Reorder the terms:
78 + p = 7 + 8 + 8p

Combine like terms: 7 + 8 = 15
78 + p = 15 + 8p

Solving
78 + p = 15 + 8p

Solving for variable 'p'.

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

Add '-8p' to each side of the equation.
78 + p + -8p = 15 + 8p + -8p

Combine like terms: p + -8p = -7p
78 + -7p = 15 + 8p + -8p

Combine like terms: 8p + -8p = 0
78 + -7p = 15 + 0
78 + -7p = 15

Add '-78' to each side of the equation.
78 + -78 + -7p = 15 + -78

Combine like terms: 78 + -78 = 0
0 + -7p = 15 + -78
-7p = 15 + -78

Combine like terms: 15 + -78 = -63
-7p = -63

Divide each side by '-7'.
p = 9

Simplifying
p = 9

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