Okay here it is
Y- 2 = 3 (X- 2)
And do you have the Y intercept? Because so far your slope intercept equation is
Y = 3x + ____
Answer: 1st # n=35
2nd # n+2=37
Step-by-step explanation:
n= 1st #
n+2= 2nd #
n+n+2=72
2n+2=72 ( combine like terms)
2n+2-2=72-2
2n=70
2n/2=72/2
n=35
First, let's create two variables to express the girls' ages.
x=age of girl 1
y = age of girl 2
Now, let's create our expressions
x+y = 24
x-y=6
Let's solve by elimination
2x = 30
Divide both sides by 2
x=15
We can plug 15 in for x into one of our expressions
15 + y = 24
Subtract both sides by 15
y = 9
The older girl is 15 years old and the younger girl is 9 years old.
