Question

If p is a solution of x/3+1=7/15 then the value of 5p=​

Answer 1

Answer: if put p in palce of x

p/3+1=7/15

p+3/3=7/15

p+3=3(7/15)

p=7/5-3

p=7-15/5

5p=5(7-15/5)

5p=-8

Step-by-step explanation:

Answer 2

STEP BY STEP EXPLANATION

The given question can be written as

$\frac{x}{3}+ 1-\frac{7}{15} =0$

Let

$f(x)= \frac{x}{3} + 1-\frac{7}{15}$

From the question, p is the solution of f(x)

$f(p)=\frac{p}{3} + 1-\frac{7}{15}$

As p is the solution

f(p)=0

$\frac{p}{3}+1-\frac{7}{15} = 0\\ \frac{p}{3}+ \frac{8}{15} =0 \\p=-\frac{8}{5} \\5p=5.\frac{-8}{5} = -8$

Hope it helps

:)