Question

2x+3y=13 and 5x-4y=-2. solve this substitution method​

Answer 1

Answer:

x = 2, y = 3

Step-by-step explanation:

2x + 3y = 13

=> 2x = 13 - 3y

=> x = (13 - 3y)/2

5x - 4y = - 2

5 (13 - 3y)/2 - 4y = -2

$\frac{(65 - 15y) - 8y}{2}$ = - 2

-4 = 65 - 15y - 8y

-4 = 65 - 23y

23y = 65+4 = 69

y = 69/23 = 3

x = (13-9)/2 = 4/2 = 2