Rhiannamurray1
Rhiannamurray1
20-04-2021
Mathematics
contestada
solve the compound inequality
Respuesta :
mhanifa
mhanifa
20-04-2021
Answer:
Given inequality:
-5r + 7 ≥ -7 - 6r ≥ 4r + 3
Solve in parts:
-5r + 7 ≥ -7 - 6r ⇒ 6r - 5r ≥ -7 - 7 ⇒ r ≥ -14
-7 - 6r ≥ 4r + 3 ⇒ 4r + 6r ≤ -7 - 3 ⇒ 10r ≤ -10 ⇒ r ≤ -1
Combine into one:
-14 ≤ r ≤ -1
or
r = [-14, -1]
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