7p-9=4p

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Solution for 7p-9=4p equation:


Simplifying
7p + -9 = 4p

Reorder the terms:
-9 + 7p = 4p

Solving
-9 + 7p = 4p

Solving for variable 'p'.

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

Add '-4p' to each side of the equation.
-9 + 7p + -4p = 4p + -4p

Combine like terms: 7p + -4p = 3p
-9 + 3p = 4p + -4p

Combine like terms: 4p + -4p = 0
-9 + 3p = 0

Add '9' to each side of the equation.
-9 + 9 + 3p = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 3p = 0 + 9
3p = 0 + 9

Combine like terms: 0 + 9 = 9
3p = 9

Divide each side by '3'.
p = 3

Simplifying
p = 3

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