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Mathematics 9 Online
OpenStudy (sparklestaraa):

Help Check Questions.

OpenStudy (sparklestaraa):

OpenStudy (sparklestaraa):

OpenStudy (anonymous):

\[\left| 2x-3 \right|+5=4\]

OpenStudy (anonymous):

\[\left| 2x-3 \right|=-1\]

OpenStudy (sparklestaraa):

Which is this one?

OpenStudy (anonymous):

question 13

OpenStudy (sparklestaraa):

oh this is the answer thats wrong?

OpenStudy (anonymous):

let me show u the working

OpenStudy (sparklestaraa):

ok :)

OpenStudy (anonymous):

\[2x-3=\pm(-1)\]

OpenStudy (anonymous):

\[2x=3\pm(-1)\]

OpenStudy (anonymous):

\[x=\frac{ 3\pm(-1) }{ 2 }\]

OpenStudy (anonymous):

\[x=\frac{ 3+(-1) }{ 2 }\]\[x =\frac{ 3-(-1) }{ 2 }\]

OpenStudy (anonymous):

\[x=\frac{ 3-1 }{ 2 },x=\frac{ 3+1 }{ 2 }\]

OpenStudy (anonymous):

\[x=1,x=2\]

OpenStudy (anonymous):

Therefore,the solution of equation 1 are x=1,2

OpenStudy (anonymous):

second equation....

OpenStudy (anonymous):

\[\left| 5x+3 \right|-10=3\]

OpenStudy (anonymous):

\[\left| 5x+3 \right|=10+3\]

OpenStudy (anonymous):

\[\left| 5x+3 \right|=13\]

OpenStudy (anonymous):

\[5x+3=\pm13\]

OpenStudy (sparklestaraa):

I think i understand let me try :)

OpenStudy (anonymous):

okay ^_^

OpenStudy (sparklestaraa):

x= -2 :D

OpenStudy (anonymous):

no wait

OpenStudy (sparklestaraa):

oh ok

OpenStudy (anonymous):

\[5x+3=\pm13\]

OpenStudy (anonymous):

\[5x=-3\pm13\]

OpenStudy (anonymous):

\[x=\frac{ -3\pm13 }{ 5 }\]

OpenStudy (anonymous):

\[x=\frac{ -3+13 }{ 5 },x=\frac{ -3-13 }{ 5 }\]

OpenStudy (anonymous):

\[x=\frac{ 10 }{ 5 },x=\frac{ -16 }{ 5 }\]

OpenStudy (anonymous):

\[x=2,-3.2\]

OpenStudy (anonymous):

@Sparklestaraa

OpenStudy (anonymous):

so which statement is correct? @Sparklestaraa

OpenStudy (sparklestaraa):

D :D

OpenStudy (sparklestaraa):

THANKS so so so much :D so was this the only one i got incorrect

OpenStudy (sparklestaraa):

@ILUVSOCCER

OpenStudy (anonymous):

let's check question 14

OpenStudy (anonymous):

\[7-9x-(x+12)\le25\]

OpenStudy (anonymous):

\[7-10x-12\le25\]

OpenStudy (anonymous):

\[-10x-5\le25\]

OpenStudy (anonymous):

\[-10x \le30\]

OpenStudy (anonymous):

\[x \ge-3\]

OpenStudy (anonymous):

question 14 u r correct. :)

OpenStudy (sparklestaraa):

:) thanks @MARC_ @ambius Here its above in the screenshots i can make a new question to give u medals if u would like

OpenStudy (sparklestaraa):

Can u fan me so i can message u ? @MARC_

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