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Mathematics 7 Online
OpenStudy (anonymous):

solve the inequality |8x+4|<28

OpenStudy (mathstudent55):

An absolute value inequality of this type becomes a compound inequality. For the absolute value inequality below, X is an expression in x, and k is a number \(|X|<k\) The solutionj is obtained by solving the following compound inequality: \(-k \lt X \lt k\)

OpenStudy (mathstudent55):

That means, you must solve this: \(-28 \lt 8x + 4 \lt 28\)

OpenStudy (solomonzelman):

STEPS: 1) subtract 4 from each part. 2) divide each part by 8.

OpenStudy (anonymous):

so its -4<x<3

OpenStudy (mathstudent55):

|dw:1415119078318:dw|

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