20+9p=7(p+4)

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Solution for 20+9p=7(p+4) equation:


Simplifying
20 + 9p = 7(p + 4)

Reorder the terms:
20 + 9p = 7(4 + p)
20 + 9p = (4 * 7 + p * 7)
20 + 9p = (28 + 7p)

Solving
20 + 9p = 28 + 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.
20 + 9p + -7p = 28 + 7p + -7p

Combine like terms: 9p + -7p = 2p
20 + 2p = 28 + 7p + -7p

Combine like terms: 7p + -7p = 0
20 + 2p = 28 + 0
20 + 2p = 28

Add '-20' to each side of the equation.
20 + -20 + 2p = 28 + -20

Combine like terms: 20 + -20 = 0
0 + 2p = 28 + -20
2p = 28 + -20

Combine like terms: 28 + -20 = 8
2p = 8

Divide each side by '2'.
p = 4

Simplifying
p = 4

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