-21=4p+5p

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Solution for -21=4p+5p equation:


Simplifying
-21 = 4p + 5p

Combine like terms: 4p + 5p = 9p
-21 = 9p

Solving
-21 = 9p

Solving for variable 'p'.

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

Add '-9p' to each side of the equation.
-21 + -9p = 9p + -9p

Combine like terms: 9p + -9p = 0
-21 + -9p = 0

Add '21' to each side of the equation.
-21 + 21 + -9p = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -9p = 0 + 21
-9p = 0 + 21

Combine like terms: 0 + 21 = 21
-9p = 21

Divide each side by '-9'.
p = -2.333333333

Simplifying
p = -2.333333333

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