Question

answer asap...
I've my exams now​

Answer 1

the coordinates of the points of intersection of lines ax+by=9 and bx+ay=5 is (3,minus 1). find the values of a and b

ax+by=9

bx + ay = 5

as both lines intersect on point (3,-1)

so this point lies on both line hence

satisfies the line equation

3a - b = 9

3b - a = 5

adding both

2a +2b =14

a + b = 7

b = 7-a

3a -(7-a) = 9

4a - 7 = 9

4a = 16

a = 4

b = 7-4 = 3

a = 4

b = 3

Answer 2

Answer:

⬆️⬆️⬆️hope it helps you:)

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