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S_A_V [24]
3 years ago
12

Select the correct answer.

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Step-by-step explanation:

x-9≤2(9-x)

distribute

x-9≤18-2x

add 2x on both sides

3x-9≤18

add 9 on both sides

3x≤27

divide by 3

x≤9

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