Question

7x+11y-1=0,8x+13y=2 substitutions method​

Answer 1

Step-by-step explanation:

7x+11y=1 ..... (1) 8x+13y=2 ...... (2) y=(2-8x )/13 put this value in equation (1) 7x+11 (2-8x)/13=1 7x+(22/13)-(88x/13)=1 (91x-88x)/13=1-(22/13) 3x/13=-9/13 3x=-9 x=-3 put this value in equation (2) -24+13y=2 13y=26 y=2

Answer 2

x= 23/7 ,y=-2 this is the answer