# Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

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 Algebra: Expressions involving variables, substitution Solvers Lessons Answers archive Quiz In Depth

 Question 179047: we are solving the x and y values of the linear equations using the substitution method im stuck 0.5x-2y=17 2x+y=104 can you help me solve the x nd y values Click here to see answer by josmiceli(9671)

 Question 179073: solve each algebraically. Identify each system as consistent and dependent, consistent and independent, or inconsistent. {x-5y=10 {-54=-x+6 Click here to see answer by HyperBrain(694)

 Question 179112: x^2+18x+14=(x+a)^2+b where a and b are numbers, then, a=? b=? Click here to see answer by solver91311(16877)

 Question 179117: solve if it is an equation if not, simplify it. thank you. 26) (x + 3)^-1/3 = -1 24) 25^3/2 = (square root) 22) x = SR(1-8x) + 2 Click here to see answer by stanbon(57323)
 Question 179117: solve if it is an equation if not, simplify it. thank you. 26) (x + 3)^-1/3 = -1 24) 25^3/2 = (square root) 22) x = SR(1-8x) + 2 Click here to see answer by solver91311(16877)

 Question 179124: I was wondering how to show my work on a problem when x-11=5x+15 Click here to see answer by edjones(7569)
 Question 179124: I was wondering how to show my work on a problem when x-11=5x+15 Click here to see answer by Mathtut(3670)

 Question 179462: Which numbers cannot be used in place of the variable in each rational expression? a^2 - b^2/ a - b Click here to see answer by stanbon(57323)

 Question 179552: Don was setting up two aquariums in his new office.At the pet store,salt water fish were priced ar \$2 each and fresh water fish were priced at \$3 each.He bought some of each kind and paid \$31 for a total of 13 fish.How many freah water fish did he buy? Click here to see answer by nerdybill(6958)

 Question 179558: find three consecutive intergers such that the sum of twice the first and 4 times the second is equal to 20 more than twice the third Click here to see answer by checkley77(12569)

 Question 179574: I know this is probably really easy, but I am stuck. I'd appreciate any help you can offer. Rewrite the following expression with positive exponents: (37xy)^-6/7 Click here to see answer by jim_thompson5910(28593)

 Question 179603: Amelia's parents and grandparents have both opened savings accounts to save for Amelia's education. This year, Amelia's parents' savings account earned 5% interest and her grandparent's account earned 8% interest. This year, the two savings accounts have earned a total of \$460 in interest. At the beginning of the year, the two accounts were worth a total of \$6500. Determine the current value of both saving accounts. Show all work necessary to justify your answer. I am not sure how to break down this problem in order to get the answer. I realize it is two parts. a+b=\$460 x+y=\$6960 Click here to see answer by stanbon(57323)

 Question 179692: 118. Solve if it has a solution SR(x – 2) + 5 = 1 129. Simplify 64^(2/3) Click here to see answer by edjones(7569)

 Question 179832: My Problem Is: Y=2x+3 Y=4x-1 My teacher taught me today, but I left her room not understanding how to work this problem out. I'm not sure if they both start with "y" if the formula is the same or not. How do I do this problem? Click here to see answer by stanbon(57323)

 Question 179933: To divide 7/x+2 by x-2/14, you can multiply 7/x+2 by: Click here to see answer by Mathtut(3670)

 Question 180044: Solve: 2and 1/2 + 3 and 1/16k + 1/8= 0 solve for k Click here to see answer by Mathtut(3670)

 Question 180151: I would like to know how to solve this problem. I don't want the answer, just the steps I need to use. Stephan cuts a 20-yard ribbon. One piece is 3-yards longer than the other. What is the length of each rope? Click here to see answer by Alan3354(30993)

 Question 180150: Reduce to lowest terms the fraction: 3xy -5x / 2x -3xy. Click here to see answer by eperette(173)
 Question 180150: Reduce to lowest terms the fraction: 3xy -5x / 2x -3xy. Click here to see answer by checkley77(12569)

 Question 180149: Reduce to lowest terms the fraction: 3xy -5x / 2x -3xy. Click here to see answer by checkley77(12569)

 Question 180148: For what value is the fraction : 15 -x / x+1 undefined? Click here to see answer by eperette(173)

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