3a + b = 54
Substitute b for 9
3a + 9 = 54
Subtract 9 to both sides
3a = 45
Divide 3 to both sides
a = 15
Answer: 14 points or 2 touchdowns
Step-by-step explanation:
7 touchdowns times 7 points = 49 points scored by brayden and gavin
9 touchdowns times 7 points - 63 points scored by cole and freddy
63 - 49 = 14
14 points = 2 touchdowns
Answer:
10 times as much
Step-by-step explanation:
the 2 in 82 is worth 2 ones while the 2 in 21 is worth 10 ones
