4p-3=p-21

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Solution for 4p-3=p-21 equation:


Simplifying
4p + -3 = p + -21

Reorder the terms:
-3 + 4p = p + -21

Reorder the terms:
-3 + 4p = -21 + p

Solving
-3 + 4p = -21 + p

Solving for variable 'p'.

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

Add '-1p' to each side of the equation.
-3 + 4p + -1p = -21 + p + -1p

Combine like terms: 4p + -1p = 3p
-3 + 3p = -21 + p + -1p

Combine like terms: p + -1p = 0
-3 + 3p = -21 + 0
-3 + 3p = -21

Add '3' to each side of the equation.
-3 + 3 + 3p = -21 + 3

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

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

Divide each side by '3'.
p = -6

Simplifying
p = -6

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