Question

3x-5y-19=0
-7x+3y+1=0​

Answer 1

Answer:

Step-by-step explanation:

3x - 5y = 19. -(1)

-7x + 3y = -1

Taking (-) common

7x - 3y = 1. -(2)

Solving both equation

3x - 5y = 19

7x - 3y = 1

Multiplying 1st equation by 7 and 2nd by 3

21x - 35y = 133

21x - 9y = 3

(-) (+) (-)

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

-26y = 130

y = -5

Putting the value of y in 1st equation

3x - 5y = 19

3x - (5 * -5) = 19

3x + 25 = 19

3x = -6

x = -2

x = -2 and y = -5

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