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OpenStudy (anonymous):
2|5x - 2| + 4 = 18 for x.
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OpenStudy (anonymous):
i am trying to figure this out...but i can't figure it out.
OpenStudy (anonymous):
is 18x?
OpenStudy (across):
This is basically two equations.
OpenStudy (anonymous):
Solve 2|5x - 2| + 4 = 18 sorry
OpenStudy (across):
\[2(5x-2)+4=18\]and\[2(2-5x)+4=18\]
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OpenStudy (anonymous):
Now how did you get that?
OpenStudy (anonymous):
10x-2+4=18 10x-2+4-18 10x-16
OpenStudy (anonymous):
Thank you @Muskan AND @across
OpenStudy (anonymous):
ur wlc
Parth (parthkohli):
A better idea:\[2|5x - 2| + 4 = 18\Rightarrow |5x - 2| = 7\]Square both sides. \[25x^2 - 10x + 4 = 49\]Solve the quadratic equation.
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