Question

solve |2x+9|<25

Answer 1

\(|a|<b \iff -b<a<b\)

Answer 2

so you have \(-25<2x+9<25 \iff -16<2x<34\)
can you complete it?

Answer 3

would it be -17<x<8

Answer 4

-16<2x<34

divide everything by 2
what do you have?

Answer 5

-8<x<17

Answer 6

is it right

Answer 7

yes

Answer 8

when i typed this in mathway the 8 was positive and the 17 negative

Answer 9

sorry I added 9
\(|2x+9|<25\iff -25<2x+9<25 \iff -34<2x<16 \iff\\ -17<x<8\)

Answer 10

you shuold have caught that, and the fact that you didn't makes me think you don't understand something. Do you have any questions?

Answer 11

i understand it i need time to reviewwwww