Question

find the value of D for the simultaneously equation : 5x + 3y +11 = 0 , 2x + 4y = -10​

Answer 1

Answer:

D (-1,-2)

Step-by-step explanation:

5x+3y = -11

2x=4y=-10

multiply 2 with eq 1

multiply 5 with eq 2 to make the x same

10x +6y =-22

10x+20y=-50

subtract and solve we get

y=-2

put in eq 1 we get

x=-1