Answer:
Kate’s photo get 14 likes
Step-by-step explanation:
Let
x ----> Kate's likes
y ---> Ali's likes
we know that
y=42 likes ----> equation A
y=3x ----> equation B
Solve by substitution
Substitute equation A in equation B and solve for x
42=3x
Divide by 3 both sides
x=42/3
x=14 likes