Question

solve x+y =7 and 2x-3y=8​

Answer 1

Answer:

$x + y = 7 \\ x = 7 - y........1 \\ \\ 2x - 3y = 8 \\ 2(7 - y) - 3y = 8 \\ 14 - 2y - 3y = 8 \\ - 5y = - 6 \\ y = \frac{6}{5} \\ \\ subs \: y \: in \: 1 \\ x = 7 - \frac{6}{5} \\ x = \frac{29}{5}$

hope it helps u..... ^_^

Answer 2

Answer:

x = 29/5.

y= 6/5

Step-by-step explanation:

x + y = 7.

so, X = 7 - y. ----(I)

2X - 3y = 8.

putting the value of X in this equation.

2 (7 - y) - 3y =8

14 - 2y - 3y =8

14 - 5y = 8

-5y = 8 -14

-5y = - 6

5 y = 6

y= 6 / 5. -----(ii).

putting the value of y in equation (I).

x = 7 - y

x = 7 - 6/5

x = 29/5.