Question

if x = 3 and y = 2 is the solution of a pair of linear equations ax - 2y = 8 and x + by = 5 then the value of a - b =____​

Answer 1

Answer:

put the value of x and y and find the answer

Answer 2

Answer:

ax-2y=8 put value x, y, 3a-2*2=8, 3a=12,a=4 next second equation x+by=5, 3+b*2=5, b=2, a-b=4-2,a-b =2