vinnay17
27.09.2020 •
Mathematics
What is the solution of 3|x – 5| + 2 = 20?
x = –1 or x = 11
x = –6 or x = 6
x = –11 or x = 1
x = –11 or x = 11
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Ответ:
Answer
-1,11
step by step
when x =11
3|x-5|=20
3|11-5|+2=20
3|6|+2=20
18+2=20
20=20
when x=-1
3|-1-5|+2=20
3|-1-5|+2=20
3|-6|+2=20(the -6 became 6 due to | | sign)
3*6+2=20
18+2=20
20=20
Ответ:
(0,30), (3,90)
Step-by-step explanation:
Im not sure if (1,30) is one or not