Question

a + 2d = 5 , a + 6d = 9 solve it in pair of linear equations​

Answer 1

Given,

Two equations a+2d = 5 and a+6d = 9

To Find,

The value of a and d.

Solution,

The two given equations are

a+2d =  5

and

a+6d = 9

Now subtracting the above-mentioned equations

-4d = -4

d = -4/-4

d = 1

Now, substituing the value of d in first equation

a+2(1) = 5

a = 3

Hence, the value of a is 3 and d is 1.

Answer 2

Answer:

The values are a = 3 and d = 1

Step-by-step explanation:

The pair of linear equations are given by

a + 2d = 5

a + 6d = 9

Substracting the two linear equations

(a + 2d) - (a + 6d) = 5 - 9

a + 2d - a - 6d = -4

-4d = -4

d = 1

Put d = 1

a + 2d = 5

a + 2(1) = 5

a = 5 - 2

a = 3

Therefore the values are a = 3 and d = 1