(2p+4)+(p-1)-(p+7)=

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Solution for (2p+4)+(p-1)-(p+7)= equation:


Simplifying
(2p + 4) + (p + -1) + -1(p + 7) = 0

Reorder the terms:
(4 + 2p) + (p + -1) + -1(p + 7) = 0

Remove parenthesis around (4 + 2p)
4 + 2p + (p + -1) + -1(p + 7) = 0

Reorder the terms:
4 + 2p + (-1 + p) + -1(p + 7) = 0

Remove parenthesis around (-1 + p)
4 + 2p + -1 + p + -1(p + 7) = 0

Reorder the terms:
4 + 2p + -1 + p + -1(7 + p) = 0
4 + 2p + -1 + p + (7 * -1 + p * -1) = 0
4 + 2p + -1 + p + (-7 + -1p) = 0

Reorder the terms:
4 + -1 + -7 + 2p + p + -1p = 0

Combine like terms: 4 + -1 = 3
3 + -7 + 2p + p + -1p = 0

Combine like terms: 3 + -7 = -4
-4 + 2p + p + -1p = 0

Combine like terms: 2p + p = 3p
-4 + 3p + -1p = 0

Combine like terms: 3p + -1p = 2p
-4 + 2p = 0

Solving
-4 + 2p = 0

Solving for variable 'p'.

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

Add '4' to each side of the equation.
-4 + 4 + 2p = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 2p = 0 + 4
2p = 0 + 4

Combine like terms: 0 + 4 = 4
2p = 4

Divide each side by '2'.
p = 2

Simplifying
p = 2

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