ccannon1985
ccannon1985 ccannon1985
  • 12-06-2018
  • Mathematics
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Solve for x: −2x + 5 < 7
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vidalmari6p99qfk
vidalmari6p99qfk vidalmari6p99qfk
  • 12-06-2018

x > -1


-2x+5 < 7

-2x<2

Now since you divide by (-1) to get positive 2,you need to flip the sign

(-2)/(-1)= 2     2/(-1)=-2

SO

2x>-2

x > -1

To check  the solution do not replace the x by -1 because it shouls be more than -1  (You can choose 0,1,2,3....)

Example  choose x=3

-2x3+5<7

-6+5<7

-1<7

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