Question

x+y=10; (2/3)x+(1/4)y =5

Answer 1

Respuesta:

(x, y )= (45/77, 340/77)

Explicación paso a paso:

x + y= 5

10 × 2/3x + 1/4y= 5

x + y= 5

80x + 3y= 60

-80x - 80y= -400

80x + 3y= 60

-77y= -340

y= 340/77

x + 340/77= 5

x= 45/77

(x, y)= (45/77, 340/77)