Mathematics
18 Online
OpenStudy (anonymous):
Solve for x.
x-7/8 = 7/2
A. x=35
B. X=9(2/7)
C.x= 31(1/2)
D. x=63
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OpenStudy (anonymous):
\[x-\frac{ 7 }{ 8 }=\frac{ 7 }{ 2 }\]
OpenStudy (anonymous):
First,add 7/8 on both sides.
OpenStudy (anonymous):
\[x-\frac{ 7 }{ 8 }+\frac{ 7 }{ 8 }=\frac{ 7 }{ 2 }+\frac{ 7 }{ 8 }\]
OpenStudy (anonymous):
\[x=\frac{ 7 }{ 2 }+\frac{ 7 }{ 8 }\]
OpenStudy (anonymous):
Then make the denominator the same
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OpenStudy (anonymous):
14/ 10?
OpenStudy (anonymous):
\[x=\frac{ 7\times4 }{ 2\times4 }+\frac{ 7 }{ 8 }\]
OpenStudy (anonymous):
Okay then what do I do next?
OpenStudy (anonymous):
\[x=\frac{ 28 }{ 8 }+\frac{ 7 }{ 8 }\]\[x=\frac{ 28+7 }{ 8 }\]Add up
OpenStudy (anonymous):
It's B
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OpenStudy (anonymous):
\[x=\frac{ 35 }{ 8 }\]\[x=?\]make it into proper fraction
OpenStudy (anonymous):
The options are wrong
OpenStudy (anonymous):
It's not wrong
OpenStudy (anonymous):
Pls recheck ur question...maybe u written it wrongly
OpenStudy (anonymous):
They are fractions
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OpenStudy (anonymous):
\[\frac{ x-7 }{ 8 }=\frac{ 7 }{ 2 }\]like this?
OpenStudy (anonymous):
First,multiply both sides by 8.
Then,add 7 on both sides.
OpenStudy (anonymous):
\[(\frac{ x-7 }{ 8 })\times8=(\frac{ 7 }{ 2 })\times8\]\[x-7=28\]\[x-7+7=28+7\]\[x=?\]solve it @jojoheart