I wanna say the last one is correct not sure about the others . :\
10x+3y=43
-9x-y=-20
From second equation,
y=-9x+20
Substitute third equation into first equation,
10x+3(-9x+20)=43
10x-27x+60=43
-17x=43-60
-17x=-17
x=1
y= -9+20= 11
Option B
Answer:
B just took the test hope this helps
The initial equation is:

Let's transform it for x:

... distract 5:

... divide both sides by 5:
Answer:
30
Step-by-step explanation:
2 + 3 = 6
6 x 10 = 30
30 snowmen