Question

Solve using elimination method:2y+3x=13xy; 5y–4x=-2​

Answer 1

Answer:

Step-by-step explanation:

3x +2y = 13xy -------(1)

4x - 5y = 2xy --------(2)

by using elimination method

multiply by 5 in eq. 1 and 2 in eq.2

5(3x + 2y = 13xy)

2(4x - 5y = 2xy)

15x + 10y = 65xy

8x - 10y = 4xy

23x = 69xy

y = 23x/69x

y = 1/3

put y in eq.1

3x + 2y = 13xy

3x + 2(1/3) =13x(1/3)

3x + 2/3 = 13x/3

2/3 = 13x/3 -3x

2/3 = (13x - 9x)/3

2/3 = 4x/3

2×3 = 4x × 3

6 = 12x

x = 1/2

Answer 2

you can check out from google