Question

using substitution method solve x+y-(a+b)= 0 and ax-by- a square-b square= 0​

Answer 1

Answer:

x=a

y=b

Step-by-step explanation:

x+y-(a+b) =O... . eq 1

or, x=a+b -y

ax-by-a square -b square=O... . eq2

putting the value if x

a (a+b -y) -by-a square - b square=O

or, a square + ab - ay -by -a square - b square=O

cutting out both a square,

or, (ab - ay) -(b square - by) =0

or, a (b-y) -b(b-y) =0

(a-b) (b-y) =0

therefore,

b-y=0

or, y=b(ans)

putting the value of y in

x=a+b-y

or, x=a+b-b

or, x=a(ans)