Question

solve -x(-3)+2<3(2x-5)+2
-x+3+2<6x-15+x
3+2<8x-15
5x<8x-15
20/8 < 8x ( this is where i have my question do you switch the sign here because 20 is > 8?

i thought you only switch the sign when multiplying or diving by negatives in interval notation type things? can anyone help

Answer 1

teacher wants us to graph it and do interval notation the end answer is 2.5>x im just wondering about the sign thing

Answer 2

no that happens when there is + or - signs

Answer 3

your sum is correct .your answer will be 2.5<x

Answer 4

im confused because my teacher said the answer is 2.5>x

Answer 5

just on the graph show the 2.5 thing.everything is ok.:)

Answer 6

dude wait there is a mistake in your sum

Answer 7

you have calculated in a wrong way.check mine

Answer 8

-x(-3)+2<3(2x-5)+2
3x+2<6x-13
15<3x
5<x

Answer 9

oh thanks

Answer 10

did you get the thing

Answer 11

yea