4(2p+7)-5(p-1)=12

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Solution for 4(2p+7)-5(p-1)=12 equation:


Simplifying
4(2p + 7) + -5(p + -1) = 12

Reorder the terms:
4(7 + 2p) + -5(p + -1) = 12
(7 * 4 + 2p * 4) + -5(p + -1) = 12
(28 + 8p) + -5(p + -1) = 12

Reorder the terms:
28 + 8p + -5(-1 + p) = 12
28 + 8p + (-1 * -5 + p * -5) = 12
28 + 8p + (5 + -5p) = 12

Reorder the terms:
28 + 5 + 8p + -5p = 12

Combine like terms: 28 + 5 = 33
33 + 8p + -5p = 12

Combine like terms: 8p + -5p = 3p
33 + 3p = 12

Solving
33 + 3p = 12

Solving for variable 'p'.

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

Add '-33' to each side of the equation.
33 + -33 + 3p = 12 + -33

Combine like terms: 33 + -33 = 0
0 + 3p = 12 + -33
3p = 12 + -33

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

Divide each side by '3'.
p = -7

Simplifying
p = -7

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