Algebra Sq Rt
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algebra
I cant get this one nither I tried like 4 times to get right answer. 5x+123x=2x13x x=5 5x+123x=2x13x First, let's get the unknowns on one side of the equation and the knowns on the other side. 5x  3x + 2x + x = 12  13
asked by chrissy on August 1, 2007 
math
what is the rule for greater than less than sign. The greater than sign, > , means that whatever is to the left of it is greater than what is to the right of the sign. The less than sign, < , is just the opposite. Whatever is to
asked by Jenny on October 18, 2006 
proof by mathematical induction
subject is PreCalulus. 2^(k+3) = and < (k+3)! i know how to do proving using mathematical induction when its just an equal sign, but I don't understand what to do when its an inequality. thank you!!! Here is what I would do Step
asked by Cait on January 5, 2007 
Math
The sum of two numbers is 112. The second is 7 more than 4 times the first. What are the two numbers? Am I doing something wrong? I seem to be stuck. x + y =112 (x+7)4y=112 The second equation should be: y+7=4x Should be the 2nd
asked by Sissy on May 18, 2007 
math
how do you isolate a variable? my teacher gave us questions and we are suppose to isolate the variable x PLEASE HELP! x + 3y = 11 You isolate it by moving everyting to the other side except that variable. Thus x + 3y = 11 is the
asked by sophmore on September 13, 2006 
math
The scale balanced when n+20=80 Suppose the left side becomes n+3 How can I change the right side so that n+3=____ is equivalent to n+20=80 How can I change the right side to get an equivalent equation my choices are A. Add blank
asked by Hannah on January 12, 2015 
math
If the answer is 12/3m what is the question> How can you solve equations like these? 9r + 7 = 4r  8 Need to get the r on one side. 1st subtract 4r from the right side of the = sign. What you do to one side do to the other.
asked by jenny on November 14, 2006 
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"Though I do hate him as I do hellpains, Yet, for necessity of present life, I must show out a flag and sign of love, Which is indeed but sign." i don't know what this quote means this is what i think: "even though i hate him but
asked by NeedHelp on November 19, 2010 
Ratios and proportions
RATIOS AND PROPORTIONS x 3  =  4 2 The boards don't post spacing as we would wish. I suppose the problem is x/4 = 3/2. Multiply left and right sides by 4. That will "cancel" the 4 in the denominator of the left side. Now
asked by seth on August 5, 2006 
Algebra
I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl please help :) When you solve for a variable, you
asked by Avalon on November 18, 2006