Asked by Kathrin
-8x > -64
A little confused on how this is done.
A little confused on how this is done.
Answers
Answered by
Ms. Sue
-8x > -64
Divide both sides by -8. Turn the sign around because you're dividing by a negative number.
x < 8
Divide both sides by -8. Turn the sign around because you're dividing by a negative number.
x < 8
Answered by
Steve
one way is to remember to change direction when multiplying/dividing by negative values. So,
-8x > -64
x < 8
This is just a shortcut to doing the addition/subtraction to swap sides:
-8x > -64
add 8x:
0 > 8x-64
add 64:
64 > 8x
8 > x
no change of direction needed here, but the 8x still winds up on the proper side of the arrow
-8x > -64
x < 8
This is just a shortcut to doing the addition/subtraction to swap sides:
-8x > -64
add 8x:
0 > 8x-64
add 64:
64 > 8x
8 > x
no change of direction needed here, but the 8x still winds up on the proper side of the arrow
Answered by
Kathrin
Thank you so much!
Answered by
Ms. Sue
You're very welcome.
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