Question

find the value of x and y if 5 x-2 Y= 4 and X + 8 Y = 26​

Answer 1

Answer:

$\left \{ {{5x - 2y=4} \atop {x+8y=26}} \right. \\\left \{ {{5.(26-8y)-2y=4} \atop {x=26-8y}} \right. \left \{ {{130-40y-2y=4} \atop {x=26-8y}} \right. \left \{ {{-42y=4-130} \atop {x=26-8y}} \right. \left \{ {{y=3} \atop {x=26-8(3)}} \right. \left \{ {{y=3} \atop {x=2}} \right.$

Step-by-step explanation:

Answer 2

Answer:

5x-2y=4

5x=4-2y

x=(4-2y)/5

x+8y=26

(4-2y)/5+8y=26

4-2y+8y=26×5

4+6y=130

6y=130-4

y=126/6

y=21

x=(4-2y)/5

x=(4-2×21)/5

x=4-42/5

x=-38/5