Question

Rakhi samikaran yugm 5 x minus 4 Y + 8 is equal to zero 7 x + 6 Y - 9 is equal to zero​

Answer 1

Step-by-step explanation:

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thanks for free points

Answer 2

x = 0.208

y = 1.74

Step-by-step explanation:

5x - 4y + 8 = 0 .............. eq 1

7x + 6y - 9 = 0 .............. eq 2

Now multiply eq 1 by 7 and eq 2 by 5 to equate

7 ( 5x - 4y + 8 = 0 )

=> 35x - 28y + 56 = 0 ............... eq 3

5 ( 7x + 6y - 9 = 0 )

=> 35x + 30y - 45 = 0 ............... eq 4

Now subtract eq 1 - eq 2

=> 35x - 28y + 56 = 0

- (35x + 30y - 45) = 0

=> 35x - 28y + 56 = 0

- 35x - 30y + 45 = 0

=> -58y + 101 = 0

=> 58y = 101

=> y = 101/58

=> y = 1.74

Substitute y = 1.74 in eq 1

5x - 4y + 8 = 0

=> 5x - 4 ( 1.74 ) + 8 = 0

=> 5x - 6.96 + 8 = 0

=> 5x + 1.04 = 0

=> 5x = - 1.04

=> x = - 1.04/5

=> x = 0.208