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Sagot :
2(3x - 4) = 2x + 12
6x - 8 = 2x + 12
4x = 20
x = 5
AB = 3(5) - 4 = 11
AC = 2(5) + 12 = 22
BC = 7(5) - 2 = 35 - 2 = 33
AC:BC = 22:33 = 2:3
Answer:
AC : BC = 2 : 3
Step-by-step explanation:
AB : AC = 1 : 2
therefor
2(3x - 4) = 2x + 12
6x - 8 = 2x + 12
4x = 20
x = 5
-----------------
AC = 2x + 12 = 22
BC = 7x - 2 = 33
AC : BC = 22 : 33
Divide by 11
AC : BC = 2 : 3
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