Question

Find the value of ‘a’ if x = 2 and y = -1 is the solution of the equation ax - y = 5.​

Answer 1

Answer:

substitute x = 2 and y = -1 in equation ax - y = 5

a×2 -(-1) = 5

2a + 1 = 5

2a = 5-1

2a = 4

a = 4/2

a = 2