Question 507461
Let 
Team B scored = x points
Team A scored = x-19

Team B points + Team A points = Total points of A and B
x+(x-19)=149
x+x-19=149
2x=149+19
2x=168
Divide by 2 both sides of above equation
2x/2=168/2
x=84
Team B scored = x = 84 points
Team A scored = x-19 = 84-19=65 points
Team B points + Team A points = Total points of A and B
84+65=149
149=149