A + b = 9
a - b = 6
what is a/b?
2 answers:
Answer:
5
Step-by-step explanation:
hello :
a + b = 9
...(*)
a - b = 6...(**)
add (*) and (**) : 2a =15.....(1)
subsct (**) and (*) : 2b=3 ....(2)
now divid (1) , (2) : 2a/2b = 15/3
means : a/b = 15/3 =5
Answer:
5
Step-by-step explanation:
a = 9 - b
9 - b - b = 6
9 - 2b = 6
9 - 6 = 2b
3 = 2b
b = 3/2
a = 9 - b
a = 9 - (3/2)
a = 15/2
a/b = (15/2) / (3/2)
a/b = 5
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