Math
posted by Kathrin
8x > 64
A little confused on how this is done.

Ms. Sue
8x > 64
Divide both sides by 8. Turn the sign around because you're dividing by a negative number.
x < 8 
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 > 8x64
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 
Kathrin
Thank you so much!

Ms. Sue
You're very welcome.
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