Question

6x - Зу = -10; 3х + 5у = 8​

Answer 1

Answer:

Step-by-step explanation:

6x - Зу = -10

Value for x is

= 6x - 3y= -10

= 6x = 3y - 10

= 6x/6 = 3y-10/6

= x = y/2 - 5/3

Value for y is

= 6x - Зу = -10

= -3y = -6x-10

= -3y/-3 = -6x-10/3

= y = 2x+10/3

3х + 5у = 8​

Value for x is

= 3x+5y=8

= 3x = -8+5y

= 3x/3 = -8+5y/3

= x = -8+5y/3

Value for y is

= 3х + 5у = 8​

= 5y = 8 - 3x

= 5y/5 = 8-3x/5

= y = 8-3x/5

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Answer 2

Answer:

x =-2/3 , y =2

Step-by-step explanation:

(3x+5y=8) *2

6x + 10y = 16

subtract Eqastion 2 from 1

6x -3y = -10

6x + 10y = 16

- - -

-13y = -26

y = 2

put the of y in Eqastion 1

6x -3*2 = -10

6x -6 = -10

6x = -4

x = -2/3