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Mathematics 12 Online
OpenStudy (anonymous):

Solve |2x + 1| = 10

OpenStudy (igreen):

You solve two equations here. 2x + 1 = 10 and -2x - 1 = 10

OpenStudy (igreen):

2x + 1 = 10 2x = 9 x = 4.5

OpenStudy (igreen):

-2x - 1 = 10 -2x = 11 x = -5.5 So x = 4.5 and -5.5

OpenStudy (igreen):

See how I did that? @Anilaojert

OpenStudy (igreen):

To get your 2nd equation you just multiply -1 to every term in the bracket(|).

OpenStudy (anonymous):

yes thank you!

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