Answer:
p = 13/2
Explanation:
Solve for p:
4 p + 8 p = 78
Hint: | Add like terms in 4 p + 8 p.
4 p + 8 p = 12 p:
12 p = 78
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of 12 p = 78 by 12:
(12 p)/12 = 78/12
Hint: | Any nonzero number divided by itself is one.
12/12 = 1:
p = 78/12
Hint: | Reduce 78/12 to lowest terms. Start by finding the GCD of 78 and 12.
The gcd of 78 and 12 is 6, so 78/12 = (6×13)/(6×2) = 6/6×13/2 = 13/2:
Answer: p = 13/2