5х + Зу = -6
2x — 9y = 18
Solve the system of equations

(0,-2)

x=0

y= -2

Step-by-step explanation:

I hope my response isn't too late!

I am going to solve this by substitution because i think it's easy, but if you want me to do it another way leave a comment

We start the substitution by isolating a single variable

I am going to solve for x in the second equation

2x=9y+18

x=4.5y+9

Now that we have this value for x we can plug it in for the top equation

5(4.5y+9)+3y= -6

22.5y+45+3y = -6

25.5y + 45 = -6

25.5y=-51

y= -2

We can then use this value for y to solve for x

5x+3(-2)=-6

5x+-6= -6

5x= 0

x= 0

your answer would be 12

angle efh= angle egh