Question

solve a+10d = 38 and a+15d = 73​

Answer 1

Given:

a + 10d = 38

a + 15d = 73

To Find:

The Value of a and d.

Solution:

a + 10d = 38

a = 38 - 10d ... (i)

a + 15d = 73

From eq.(i), we get

38 - 10d + 15d = 73

or, 5d = 73 - 38 = 35

or, d = 35/5 = 7 ... (ii)

From eq.(ii), we get

a + 10 ( 7 ) = 38

or, a = 38 - 70 = -32

Answer:

a = -32

d = 7

Answer 2

Answer:

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