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14-10-2016
Mathematics

contestada

Which of the following is value of x is in the solution set of 9(2x + 1) < 9x – 18?

A) –4
B) –3
C) –2
D) –1

Respuesta :

milesisaway milesisaway

14-10-2016

the answer is a........

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apologiabiology apologiabiology

14-10-2016

9(2x+1)<9x-18
18x+9<9x-18
minus 9x from both sides
9x+9<-18
minus 9 from both sides
9x<-27
divide both sides by 9
x<-3
so anything smaller than -3

only possible one is -4

A is answer

Answer Link

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