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Mathematics 25 Online
OpenStudy (anonymous):

please help!!

OpenStudy (anonymous):

Solve the open sentence. –2 ≤ n + 4 ≤ 7

OpenStudy (anonymous):

@amistre64

OpenStudy (amistre64):

umm, just subtract ....

OpenStudy (anonymous):

i dont get these questions

OpenStudy (amistre64):

solve for n .....

OpenStudy (anonymous):

i know that but i dont know how to solve it

OpenStudy (amistre64):

.... subtract :/

OpenStudy (amistre64):

n is heavy by +4 ... therefore n has to loose that 4 but we cant just go willy nilly removing things, we have to do it equally across the board ... if we take away something from n we have to take it away from the other parts too ....

OpenStudy (anonymous):

ohhhh,i thought you meant subtract two

OpenStudy (anonymous):

so itll be -6 < n <3

OpenStudy (anonymous):

A. n ≥ 6 and n ≤ –4 B. n ≤ 2 and n ≤ 7 C. n ≤ –6 and n ≤ 4 D. n ≥ –6 and n ≤ 3

OpenStudy (anonymous):

so its d right?

OpenStudy (amistre64):

–2 ≤ n + 4 ≤ 7 -4 -4 -4 ------------- -6 n 3 n ≥ –6 and n ≤ 3 lets turn it so that its all pointing left -6 ≤ n, n ≤ 3 yep that fits

OpenStudy (anonymous):

okay,thanks @amistre64 i finally understand it

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