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Mathematics 7 Online
OpenStudy (anonymous):

Please help I do not understand how to do the steps on this: One-Variable Compound Inequalities 4x + 7 < 11 or 1 – x ≤ -2

OpenStudy (anonymous):

4x + 7 < 11 4x-7+7<11-7 4X+7<8 Is this correct so far

OpenStudy (anonymous):

you started off write but in the 3rd line you forgot to remove the 7 from the first part of the equation & also your subtraction is off it should be 4x<4

OpenStudy (anonymous):

Not sure why

OpenStudy (anonymous):

so the third step should be 4x<4

OpenStudy (anonymous):

Do I start working on the next set

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

now you divide 4x by 4 & you'll get your first answer

OpenStudy (anonymous):

So the answer will just be 'x'?

OpenStudy (anonymous):

no remember a number divided by itself is 1

OpenStudy (anonymous):

x<1. now go to the other side of the equation, 1 – x ≤ -2

OpenStudy (anonymous):

1 – x ≤ -2 1-1-x≤-2-1 -x≤-2

OpenStudy (anonymous):

no 3 ≤ x

OpenStudy (anonymous):

is the steps correct that I just posted

OpenStudy (anonymous):

since you can't have a negative x you have to add x on both side instead first so 1 – x ≤ -2 1 -x +x ≤-2 +x 1≤-2 +x 1≤-2 +x +2 1+2≤x 3≤x

OpenStudy (anonymous):

So the -x has to be removed by dividing it into itself?

OpenStudy (anonymous):

your final answer should be 3≤x<1

OpenStudy (anonymous):

No, you have to ad x on both sides as your first step because x can not be negative

OpenStudy (anonymous):

okay. Thank you for helping me.

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