7p+21=15+6p

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Solution for 7p+21=15+6p equation:


Simplifying
7p + 21 = 15 + 6p

Reorder the terms:
21 + 7p = 15 + 6p

Solving
21 + 7p = 15 + 6p

Solving for variable 'p'.

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

Add '-6p' to each side of the equation.
21 + 7p + -6p = 15 + 6p + -6p

Combine like terms: 7p + -6p = 1p
21 + 1p = 15 + 6p + -6p

Combine like terms: 6p + -6p = 0
21 + 1p = 15 + 0
21 + 1p = 15

Add '-21' to each side of the equation.
21 + -21 + 1p = 15 + -21

Combine like terms: 21 + -21 = 0
0 + 1p = 15 + -21
1p = 15 + -21

Combine like terms: 15 + -21 = -6
1p = -6

Divide each side by '1'.
p = -6

Simplifying
p = -6

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