Substituting Values for VariablesDate: 9/2/96 at 19:18:54 From: Darlene Ayers Subject: Substituting values for variables This is what I know about this problem. a=-3/4 and b=-1/3. Here is the problem: 2a+7b-ab/7a squared. Can you please work this problem? Thanks so much. Kristin Ayers Date: 9/2/96 at 23:25:15 From: Doctor Jodi Subject: Re: Substituting values for variables Hi Kristin! When you know the values for variables, you can replace the variables with their values. For example, if you know z = 6 and you want to know 2z + 1, you can say 2z + 1 = 2 X 6 + 1 since z = 6. Then you know that 2z + 1 = 13. Does that make sense? Let us know if you need more help. -Doctor Jodi, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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