3(p+7)=15(p-4)

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Solution for 3(p+7)=15(p-4) equation:


Simplifying
3(p + 7) = 15(p + -4)

Reorder the terms:
3(7 + p) = 15(p + -4)
(7 * 3 + p * 3) = 15(p + -4)
(21 + 3p) = 15(p + -4)

Reorder the terms:
21 + 3p = 15(-4 + p)
21 + 3p = (-4 * 15 + p * 15)
21 + 3p = (-60 + 15p)

Solving
21 + 3p = -60 + 15p

Solving for variable 'p'.

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

Add '-15p' to each side of the equation.
21 + 3p + -15p = -60 + 15p + -15p

Combine like terms: 3p + -15p = -12p
21 + -12p = -60 + 15p + -15p

Combine like terms: 15p + -15p = 0
21 + -12p = -60 + 0
21 + -12p = -60

Add '-21' to each side of the equation.
21 + -21 + -12p = -60 + -21

Combine like terms: 21 + -21 = 0
0 + -12p = -60 + -21
-12p = -60 + -21

Combine like terms: -60 + -21 = -81
-12p = -81

Divide each side by '-12'.
p = 6.75

Simplifying
p = 6.75

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