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Mathematics 11 Online
OpenStudy (anonymous):

15 - | 8x + 5| =6

OpenStudy (anonymous):

move the 15 to the other side first

OpenStudy (anonymous):

i did that i got -2 and 1/2 as my answers is that right?

OpenStudy (anonymous):

1/2 is

OpenStudy (anonymous):

-2 is not

OpenStudy (anonymous):

hows it not?

OpenStudy (anonymous):

because 8x-5=-9 so 8x=-14 -14/8 =/= -2

OpenStudy (anonymous):

8x+5*

OpenStudy (anonymous):

what about the 15 ? and it equaling 6

OpenStudy (anonymous):

15 - | 8x + 5| =6 15-15 -| 8x + 5| = 6-15 -| 8x + 5| =-9 8x + 5 = ±9 8x = 9-5 or 8x = -9-5 8x = -14 oe 8x = 4 x = -14/8 or x = 1/2 -14/8 = -7/4 x = -7/4 or x=1/2

OpenStudy (anonymous):

8x + 5 = ��9 means \[8x+5 = \pm9\]

OpenStudy (anonymous):

okay thank you

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