85=5p-7(-2p-4)

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Solution for 85=5p-7(-2p-4) equation:


Simplifying
85 = 5p + -7(-2p + -4)

Reorder the terms:
85 = 5p + -7(-4 + -2p)
85 = 5p + (-4 * -7 + -2p * -7)
85 = 5p + (28 + 14p)

Reorder the terms:
85 = 28 + 5p + 14p

Combine like terms: 5p + 14p = 19p
85 = 28 + 19p

Solving
85 = 28 + 19p

Solving for variable 'p'.

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

Add '-19p' to each side of the equation.
85 + -19p = 28 + 19p + -19p

Combine like terms: 19p + -19p = 0
85 + -19p = 28 + 0
85 + -19p = 28

Add '-85' to each side of the equation.
85 + -85 + -19p = 28 + -85

Combine like terms: 85 + -85 = 0
0 + -19p = 28 + -85
-19p = 28 + -85

Combine like terms: 28 + -85 = -57
-19p = -57

Divide each side by '-19'.
p = 3

Simplifying
p = 3

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