Homework Help: Math

Posted by Sue on Saturday, February 11, 2012 at 3:56pm.

15/8z+1/4=4

Please help me solve and show how you did it. Thanks

Math - Stephanie, Saturday, February 11, 2012 at 5:39pm
z=2
Okay, well you need to isolate the variable, so I subtracted 1/4 from both sides. So I got (15/8)z=4-(1/4).
Or (15/8)z=15/4
Then simply multiply both sides by (8/15) to get z alone.
z=(15/4)(8/15)
z=2

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