3 years ago

Solve 2r ≤ 3(2r - 7)

1 answer:

7 0

2r ≤ 3(2r - 7)
2r ≤ 6r - 21
21 ≤ 6r - 2r
21 ≤ 4r
21/4 ≤ r
r $\geq$ 21/4
r $\geq$ 5.25

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