Question

answer please how to do
it's linear eqn​

Answer 1

x+ y = 9 cm .....(1)

x-y= 5 cm.....(2)

(diagonal bisect each other in a rectangle)

adding (1) and (2), we get

2x = 14 cm, ie , x = 7

hence, y = 9 - 7

y = 2

Answer 2

Answer:

Step-by-step explanation:

(148x+231y=527)×231----1

(231x+148y=610)×148----2

34188x+53361y=121737----1

34188x+21904y=90280----2

- - -

31457y=31457

y=1

now put the value of y =1in eq ---1

148x+231×1=527

148x=296

x=2