Question

3x+y=13 and 2x-4y=18 type your answer in the form of (x,y) *

Answer 1

(5, -2)

Explanation:

3x + y = 13 -->> 4 (3x + y = 13) -->> 12x + 4y = 52

2x - 4y = 18

12x + 4y = 52

2x - 4y = 18

------------------- add vertically

12x 4y 52

+2x +(-4y) +18

=14x =0 =70

--------------------

14x = 70

x = 5

3(x) + y = 13

3(5) + y = 13

15 + y = 13

y = -2

(x,y) = (5, -2)