Posted by Blake on Wednesday, January 20, 2010 at 11:56pm.
4x+12>4 and 3x25>13
Solution {xIx> ? }
I get so lost on these.

algebra  Kendra, Thursday, January 21, 2010 at 12:00am
Try to get the x by itself, just like a=bx + c, where you would subtract c from both sides then divide both sides by b. since the coefficient for x on both are positive, you don't have to worry about the greater than/less than signs.
so for the first, subtract 12 from both sides then divide both sides by 4. it's the same concept for the other side.

algebra  Blake, Thursday, January 21, 2010 at 12:10am
So I got x>2 for the first one and x>4 for the second one, now how does that fit into {xIx> ? }
Shouldn't it be just one number?

algebra  Reiny, Thursday, January 21, 2010 at 12:28am
4x+12>4 and 3x25>13
4x > 8 and 3x > 12
x > 2 and x > 4
so it looks like x > 4
write it in the notation asked for

algebra  Blake, Thursday, January 21, 2010 at 9:15pm
Ok, great thanks for the help both of you!
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