Question

we roll a fair die twice and obtain two numbers x1+x2=7 ,x1=4

Answer 1

Answer:

x2 = 3

Step-by-step explanation:

Given : x1 = 4

x1 + x2 = 7

4 + x2 = 7

x2 = 7 - 4

x2 = 3

Answer 2

Answer:

x 2 = 3

Step-by-step explanation:

A fair die twice X1+X2=7 , Two numbers X1 = 4

x 1 = 4

x 1 = x 2 = 7

4 + x 2 = 7

x 2 = 7 - 4

x 2 = 3

Two numbers = x 2 = 3