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Mathematics 21 Online
OpenStudy (anonymous):

Solve for x: 5 − (x + 5) > −2(x + 4) x > −8 x < −8 x > −18 x < −18

OpenStudy (anonymous):

@jim_thompson5910 could you help me one more please?

jimthompson5910 (jim_thompson5910):

what do you have so far?

OpenStudy (anonymous):

nothing

OpenStudy (anonymous):

i think i have to first get rid of the parenthesis right?

jimthompson5910 (jim_thompson5910):

you have to distribute, yes

OpenStudy (anonymous):

so then my equation would like this 5 - x + 5 > -2x + 4 and then i do 5 + 5 which is 10 so 10 - x > -2x + 4

OpenStudy (anonymous):

am i going in the right direction?

jimthompson5910 (jim_thompson5910):

5 − (x + 5) > −2(x + 4) 5 − x - 5 > −2x - 8

jimthompson5910 (jim_thompson5910):

you forgot to distribute fully

jimthompson5910 (jim_thompson5910):

what's next?

OpenStudy (anonymous):

add 5 to both sides?

jimthompson5910 (jim_thompson5910):

notice we have 5 and a -5 on the left side

jimthompson5910 (jim_thompson5910):

they combine to 0

OpenStudy (anonymous):

oh ok so it is left with x

OpenStudy (anonymous):

wait no

jimthompson5910 (jim_thompson5910):

-x on the left side

OpenStudy (anonymous):

ok

jimthompson5910 (jim_thompson5910):

-x > -2x - 8

jimthompson5910 (jim_thompson5910):

then what?

OpenStudy (anonymous):

add 2x

jimthompson5910 (jim_thompson5910):

correct

jimthompson5910 (jim_thompson5910):

what do you end up with?

OpenStudy (anonymous):

and the answer would be x > -8

jimthompson5910 (jim_thompson5910):

add 2x to both sides to be more specific

jimthompson5910 (jim_thompson5910):

that's the correct final answer

OpenStudy (anonymous):

ok i get it now thanks again

jimthompson5910 (jim_thompson5910):

sure thing

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