Question

solve the following pair of equation 43x+67y=-24;67x+43y=24 by substitution method.....​

Answer 1

Step-by-step explanation:

43x + 67y + 67x + 43y = 24+24

110x + 110y = 48 — eq(1)

and

43x + 67y - 67x - 43y = 24 - 24

24y - 24x = 0

y - x = 0

y = x

Putting y = x in eq(1) we get

110x + 110x = 48

x =48/220

x = 12/55

So, x = y = 12/55