Question

the
96) Solve the following simultaneous
lineas equation by using
method of equating co-effcient of
elimination by subsiêution method.
x+y=1, Bx + by = 5
Sol​

Answer 1

Answer:

x+y=1. eq1

Bx+by=5. eq2

eq1*B-eq2

(Bx+By)-(Bx+by)= B-5

(B-b)y=B-5

y=B-5/B-b

now

eq1*b-eq2

(bx+by)-(Bx+by)=b-5

(b-B)x=b-5

x=(b-5)/(b-B)