I don’t know if this correct i haven’t done it in two years but i think the answer is 76 but i’m not 100% sure
Answer:
<h2>y = 2</h2>
Step-by-step explanation:

X is the domain and y is the range
C=x+9, c+x=99, c=99-x
So we have two equations equal to c, c=x+9 and c=99-x, since c=c:
x+9=99-x
2x+9=99
2x=90
x=45, and since c=x+9, c=54
So Charlie weighs 54 kg and his brother weighs 45 kg.
Answer:
x and y
Step-by-step explanation:
because it make sense