Respuesta :

LammettHash
[tex]cx-4\ge7[/tex]
[tex]cx-4+4\ge7+4[/tex]
[tex]cx\ge11[/tex]

Since [tex]c<0[/tex], we can divide both sides by [tex]c[/tex]. This reverses the direction of the inequality.

[tex]\dfrac{cx}c\le\dfrac{11}c[/tex]
[tex]x\le\dfrac{11}c[/tex]
hkatw
the first one is the answer
x< 11/c

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