Question

5×+3y=9; 2×-3y=12. Simultaneous equations​

Answer 1

Answer:

x=9       y=2

Step-by-step explanation:

equation 1 multiply by 2

equation 2 multiply by 5

further solve it ez

Answer 2

Answer:

x= 3 , y = -2

Step-by-step explanation:

5x + 3y =9 -- eq 1

2x - 3y = 12 -- eq 2

Adding eq 1 and 2,

2x - 3y + 5x + 3y = 12 +9

7x =21

x = 21/7

x = 3

putting the value of x in eq 1

5×3 + 3y = 9

15 + 3y = 9

3y = 9 - 15

y = -6/3

y = -2