Question

solve. 123x + 111y = 357 and 111x + 123y = 345 ​

Answer 1

Answer:

x=2       y=1

Step-by-step explanation:

123x + 111y=357 → (i)              111x + 123y=345 → (ii)

Add (i) and (ii)    Also, subtract (ii) from (i)

234x+234y=702                   12x-12y=12

  x+y=3  →(iii)                       x-y=1 → (iv)

Add (iii) and (iv)

2x=4

x=2      and, y=1