jalania743
jalania743 jalania743
  • 24-08-2020
  • Mathematics
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Solve the compound - 20 ≤ 2x - 20 ≤ 10​

Solve the compound 20 2x 20 10 class=

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mhanifa
mhanifa mhanifa
  • 24-08-2020

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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