Question

ayudenme con esta ecuacion porfa 1/2x+3/4y=10
3/4x-y=4

Answer 1

/2x+3/4y=10:
solucion

(1/2)*x-((3/4)*y) = -10 // + 10

(1/2)*x-((3/4)*y)+10 = 0

(1/2)*x+(-3/4)*y+10 = 0

1/2*x-3/4*y+10 = 0 // - 10-3/4*y

1/2*x = -(10-3/4*y) // : 1/2

x = (-(10-3/4*y))/1/2

x = -2*(10-3/4*y)