Question

9th std samacheer book


SOLVE USING ELIMINATION METHOD
1. x+2y=7 ; x-2y=1

2.11x-7y=xy; 9x-4y=6xy

Answer 1

Answer:

1. (x+2y=7)+(x-2y=1)=2x=8

x=8/2

therefore, x=4

hey mate, here is your first question answer

Hope it helps you