Question

find the value of k will the following pair of linear equation have infinitely many solution 2x+3y=7; (k-1)x+(k+2)y=3k

Answer 1

Answer:

1

AShiba848

06.01.2019

Math

Secondary School

+20 pts

Answered

Find the value of k for which the following pair of linear equation have infinitely many solutions: 2x + 3y = 7; (k − 1) x + (k + 2)y = 3k

2

SEE ANSWERS

Log in to add comment

Answer

4.6/5

33

Kripa1311

Expert

181 answers

8.2K people helped

Let it would be infinite many solution

so :-

a1/a2 = b1/b2 = c1/c2

2x +3y = 7

(k - 1)x + (k + 2)y = 3k

2/k-1 = 3/k+2 = 7/3k

2/k-1 = 7/3k

6k = 7k -1

6k - 7k = -1

-k = -1

k = 1

3/k + 2 = 7/3k

9k = 7k + 14

9k - 7k = 14

2k = 14

k = 7

Step-by-step explanation:

pls mark as brainliest follow me like also