Joe is 15, 45-15=30 30/2=15
Y = 4x + 3 ---------(1)
y = -x - 2 ---------(2)
Subtract (2) from (1), you get
0 = 5x + 5
⇒ 5x + 5 = 0
⇒ 5x = -5
⇒ x = -5/5 = -1
y = -(-1) - 2 = -1
Answer is (-1,-1)
I converted the four months into a fraction, and got 1/3. There's 12 months in a year, and divided by 4, I got 3.
