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If Ac=48, determine Ab

If Ac=48, determine Ab-example-1

1 Answer

9 votes

Answer:

AB = 9

AC = AB + BC

AB = 2x - 3

BC = 5x + 9

AC = 48

AC = (2x - 3) + (5x + 9)

2x - 3 + 5x + 9 = 48

2x + 5x = 48 + 3 - 9

7x = 42

x = 42 : 7

x = 6

AB = 2x - 3

AB = 2 ยท 6 - 3

AB = 12 - 3

AB = 9

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