Question

31x-42y=51 ; 42x- 31y =95​

Answer 1

Answer:

By elimination method

31x - 42y = 51 --* 42

42x - 31y = 95--* 31

1302x - 1764y = 2142

1302x - 961y = 2945

change the signs

- + -

-803y = - 803

y = 1

put the value of y in eq.

31x - 42*1 = 51

31x - 42 = 51

31x = 51+42

31x = 93

x= 3

hope it will help u❤❤

By Namami Saxena❤❤✌✌