Question

what is the value of k if (k,5) is the solution of
the simultaneous equations 4x+3y= 19 and 4x-
3y=-11*​

Answer 1

$\huge{\boxed{\mathtt{\purple{Answer}}}}$

4k+15=19....(1)
4k-15=-11...(2)
add 1 and 2
8k=8
k=1
the value of k is 1