p+21+3p+12=7p

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Solution for p+21+3p+12=7p equation:


Simplifying
p + 21 + 3p + 12 = 7p

Reorder the terms:
21 + 12 + p + 3p = 7p

Combine like terms: 21 + 12 = 33
33 + p + 3p = 7p

Combine like terms: p + 3p = 4p
33 + 4p = 7p

Solving
33 + 4p = 7p

Solving for variable 'p'.

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

Add '-7p' to each side of the equation.
33 + 4p + -7p = 7p + -7p

Combine like terms: 4p + -7p = -3p
33 + -3p = 7p + -7p

Combine like terms: 7p + -7p = 0
33 + -3p = 0

Add '-33' to each side of the equation.
33 + -33 + -3p = 0 + -33

Combine like terms: 33 + -33 = 0
0 + -3p = 0 + -33
-3p = 0 + -33

Combine like terms: 0 + -33 = -33
-3p = -33

Divide each side by '-3'.
p = 11

Simplifying
p = 11

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