Answer:
3a + b = 54
3a + 9 = 54
3a = 54 - 9
3a = 45
3a / 3 = 45 / 3
a = 15
Answer: 13/12
Step-by-step explanation:
Common denominator:12
9/12 plus 4/12 equals 13/12 equals 1 1/12
12x + 6y = 102
5x - 6y = 34
17x = 136
x = 8
y = 1
Answer: 8.5
I just took the quiz last week.
