Question

(i) 5x – 4y + 8 = 0
7x + 6y-9=0​

Answer 1

Answer:

Heya!!

Step-by-step explanation:

What function we have to perform?

Assuming that you need to find x and y values

1. 5x - 4y + 8 = 0 => 5x - 4y = -8 -------------------(1)

2. 7x + 6y - 9 = 0=>7x + 6y = 9 -------------------(2)

We have to make any of the term equal so,                          

Multiply (1) by 6,

we get ,  30x - 24y = -48 ---------------(3)

and Multiplying (2) by 4,

we get, 28x + 24y = 36 ----------------(4)

Adding (3) and (4),

    30x - 24y = - 48 ---------------(3)

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

----------------------------------------------

   58x     =        -12

=> x = -12/58 = -6/ 29 ------------(5)

Substituting (5) in (1),

5 x -6 /29 - 4y = -8

=> -30/29 - 4y = -8

=> 4y = -30/29 + 8

=> 4y = -30 + 232 /29

=> 4y = 202 / 29

=> y = 202/29 x 4

=> y = 202/116

=> y = 101/58

THEREFORE, VALUE OF x is -6 / 29 and y is 101 / 58

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