2 years ago

Solve the compound - 20 ≤ 2x - 20 ≤ 10

Mathematics

1 answer:

Gwar [14]2 years ago

4 0

Answer:

0≤ x ≤ 15

Step-by-step explanation:

- 20 ≤ 2x - 20 ≤ 10
-20 + 20 ≤ 2x - 20 + 20 ≤ 10 + 20 ⇒ add 20
0 ≤ 2x ≤ 30 ⇒ divide by 2
0≤ x ≤ 15 ⇒ answer

or x = [0,15]

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Solve the compound - 20 ≤ 2x - 20 ≤ 10​

Solve the compound - 20 ≤ 2x - 20 ≤ 10