Question

If 2/5 is subtracted from thrice of a no. We get -7/15

Answer 1

Answer:

- 1/45

Step-by-step explanation:

3n - 2/5 = - 7/15

3n = 2/5 - 7/15

3n = - 1/15

n = - 1/45

Answer 2

Answer:

Let the unknown number be "x"

So,

According to the question,

3x-2/5 = -7/15

3x = -7/15 + 2/5

ie,

3x = -7/15 + 2*3/5*3 ( for making them like fractions so that we'll be able to add them)

3x = -7+6/15

3x = -1/15

x= -1/15*3

Therefore

x = -1/45 is the required answer.