Question

Solve graphically :5x - 4y = -8, 7x + 6y = 9...linear equation lesson ... please answer in graphically and post it ​

Answer 1

5x-4y=-8.....1)equ

7x+6y=9.......2)equ

multiply first equ by 3 and multiply second equ by 2 .

15x -12y=24

14x +12y= 18

- - = -

x = 42

substituting the value of x

15 (42 )-12y=24

900-12 y=24

900-24= 12y

876 /12=y

y = 73

x =42 and y=73

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