3p+15=21p-3

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Solution for 3p+15=21p-3 equation:


Simplifying
3p + 15 = 21p + -3

Reorder the terms:
15 + 3p = 21p + -3

Reorder the terms:
15 + 3p = -3 + 21p

Solving
15 + 3p = -3 + 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.
15 + 3p + -21p = -3 + 21p + -21p

Combine like terms: 3p + -21p = -18p
15 + -18p = -3 + 21p + -21p

Combine like terms: 21p + -21p = 0
15 + -18p = -3 + 0
15 + -18p = -3

Add '-15' to each side of the equation.
15 + -15 + -18p = -3 + -15

Combine like terms: 15 + -15 = 0
0 + -18p = -3 + -15
-18p = -3 + -15

Combine like terms: -3 + -15 = -18
-18p = -18

Divide each side by '-18'.
p = 1

Simplifying
p = 1

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