15=3(p-1)-3

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Solution for 15=3(p-1)-3 equation:


Simplifying
15 = 3(p + -1) + -3

Reorder the terms:
15 = 3(-1 + p) + -3
15 = (-1 * 3 + p * 3) + -3
15 = (-3 + 3p) + -3

Reorder the terms:
15 = -3 + -3 + 3p

Combine like terms: -3 + -3 = -6
15 = -6 + 3p

Solving
15 = -6 + 3p

Solving for variable 'p'.

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

Add '-3p' to each side of the equation.
15 + -3p = -6 + 3p + -3p

Combine like terms: 3p + -3p = 0
15 + -3p = -6 + 0
15 + -3p = -6

Add '-15' to each side of the equation.
15 + -15 + -3p = -6 + -15

Combine like terms: 15 + -15 = 0
0 + -3p = -6 + -15
-3p = -6 + -15

Combine like terms: -6 + -15 = -21
-3p = -21

Divide each side by '-3'.
p = 7

Simplifying
p = 7

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