21=7(-3p+6)

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Solution for 21=7(-3p+6) equation:


Simplifying
21 = 7(-3p + 6)

Reorder the terms:
21 = 7(6 + -3p)
21 = (6 * 7 + -3p * 7)
21 = (42 + -21p)

Solving
21 = 42 + -21p

Solving for variable 'p'.

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

Add '21p' to each side of the equation.
21 + 21p = 42 + -21p + 21p

Combine like terms: -21p + 21p = 0
21 + 21p = 42 + 0
21 + 21p = 42

Add '-21' to each side of the equation.
21 + -21 + 21p = 42 + -21

Combine like terms: 21 + -21 = 0
0 + 21p = 42 + -21
21p = 42 + -21

Combine like terms: 42 + -21 = 21
21p = 21

Divide each side by '21'.
p = 1

Simplifying
p = 1

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