Question

Solve the following simultaneous equations using graphical method x+2y=5;y=-2x-2

Answer 1

Answer:

x=(-3)&y=4

I think it will help you

Answer 2

x = 3; y = 1

Step-by-step explanation:

x +2y = 5 -------------(1)

y = -2x -2

Rearranging the terms in the correct order, we get:

2x + y = -2 -----------(2)  

(1)-------------x   +2y = 5  

(2)*2 ---------4x + 2y = -4

Subtracting---  -3x = 9

x = -9/3

Therefore x = 3

Substuting x = 3 in equation 1, we get:

3 + 2y = 5

2y = 2

y = 2/2  

y = 1

Hence solved. x = 3; y = 1