1428=21(p+15)

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Solution for 1428=21(p+15) equation:


Simplifying
1428 = 21(p + 15)

Reorder the terms:
1428 = 21(15 + p)
1428 = (15 * 21 + p * 21)
1428 = (315 + 21p)

Solving
1428 = 315 + 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.
1428 + -21p = 315 + 21p + -21p

Combine like terms: 21p + -21p = 0
1428 + -21p = 315 + 0
1428 + -21p = 315

Add '-1428' to each side of the equation.
1428 + -1428 + -21p = 315 + -1428

Combine like terms: 1428 + -1428 = 0
0 + -21p = 315 + -1428
-21p = 315 + -1428

Combine like terms: 315 + -1428 = -1113
-21p = -1113

Divide each side by '-21'.
p = 53

Simplifying
p = 53

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