Question

Solve the following simultaneous equations:- 1.) x+y=9 ; 3x-2y=-5.​

Answer 1

Answer:

5x+4y=9 ; 3x-2y=5 right solution

Answer 2

Answer:

x = 13 / 5 ; y = 32 / 5

Step-by-step explanation:

x + y = 9

x = 9 - y            ------- 1

3x - 2y = -5

3(9 - y) - 2y = -5          (From 1)

27 - 3y -2y = -5

-5y = -5 - 27

y = -32 / -5

y = 32 / 5            ------- 2

x = 9 - y

x = 9 - 32 / 5                  (From 2)              

x = (45 - 32) / 5

x = 13 / 5