Question

2x + 3y =1 x - 5y = 7 by substitute​

Answer 1

Step-by-step explanation:

2x +3y =1

2x= 1-3y

x = 1-3y/2

x-5y =7

1-3y/2 -5y =7

1-3y-10y/2 = 7

1-13y = 14

1-14 = 13y

-13 = 13y

-1 = y

x -5(-1) = 7

x +5 = 7

x = 2

Answer 2

Answer:

2x +3y =1

2x= 1-3y

x= $\frac{1-3y}{2}$

substituting value of x in eq 2

    x-5y =7

 ($\frac{1-3y}{2}$) - 5y = 7

$\frac{1-3y-10y}{2}$ = 7

1-13y = 14

-13y = 14-1

-13y =13

y = 13/-13

y=-1

now putting value of y in eq 1

2x+3(-1) =1

2x-3 =1

2x =4

x=2

x=2, y = -1