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Mathematics 51 Online
OpenStudy (anonymous):

|(2x)/(7)-5|≥7 absolute value

OpenStudy (anonymous):

OpenStudy (anonymous):

\[\frac{ 2x-35 }{ 7 }\ge7\]\[2x-35\ge49=2x \ge84=x \ge42\]

OpenStudy (anonymous):

deena its 2 root,x≥42 or x?

OpenStudy (anonymous):

-7 ≥ (2x/7)-5 ≥ 7 -7+5 ≥ 2x/7 ≥7+5 (-2)(7) ≥ 2x ≥ (12)(7) -14 ≥ 2x ≥ 84 -14/2 ≥ x ≥ 84/2 =-7 ≥ x ≥ 42

OpenStudy (anonymous):

chooper,the 1st step what did you do?

OpenStudy (anonymous):

that is how you should solve absolute values. put the 7 side by side. -7 ≥ (2x/7)-5 ≥ 7 one the left side, 7 will become negative because it was transposed. and then, at the right side, it will be the same as the given equation.

OpenStudy (anonymous):

then transpose -5 to the two sides of the equation. then solve. it's just like solving a simple equation. You can also solve it separately.

OpenStudy (anonymous):

good,tnx

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