78=3(1-5p)

Solution for 78=3(1-5p) equation:

Simplifying
78 = 3(1 + -5p)
78 = (1 * 3 + -5p * 3)
78 = (3 + -15p)

Solving
78 = 3 + -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.
78 + 15p = 3 + -15p + 15p

Combine like terms: -15p + 15p = 0
78 + 15p = 3 + 0
78 + 15p = 3

Add '-78' to each side of the equation.
78 + -78 + 15p = 3 + -78

Combine like terms: 78 + -78 = 0
0 + 15p = 3 + -78
15p = 3 + -78

Combine like terms: 3 + -78 = -75
15p = -75

Divide each side by '15'.
p = -5

Simplifying
p = -5