Question

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9. A linear pair 5x – 4y +8 = 0, 7x + 6y +9 =
O has
(1 Point)​

Answer 1

first set the value in ax+by=c form

Step-by-step explanation:

5x+4y= -8. (1) equation

7x+6y= -9. (2) equation

multiply(1) eq. by 6 and (2)eq. by 4

30x+24y= -48. (3) equation

28x+24y=-36. (4) equation

subtract (4) from(3) equation

30x+24y= -48

28x+24y= -36

_. _. +

___________

2x. = -12

X. = -6

put (X=1) in (1) equation

5(-6) +4y = -8

-30+4y =8