anibae420
anibae420
15-05-2017
Mathematics
contestada
A. x ≤ 14/11
B. x ≥ –1
C. x ≤ 2/5
D. x ≤ 2/1
Respuesta :
irspow
irspow
15-05-2017
-x/7+4≥3x subtract 4 from both sides
-x/7≥3x-4 multiply both sides by 7
-x≥21x-28 subtract 21x from both sides
-22x≥-28 divide both sides by -22 (and reverse sign because of division by a negative value)
x≤14/11
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