# 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 13920: a=h/n a = batting average, h= hits ,n=number times at bat. How would i solve equation for h? If I had a batting average of .265 and i bat 200 times how many hits does the batter have ? Click here to see answer by LilSkittleMd(119)

 Question 13967: I don't know about you but these (.) confuse me would you help with this one please? }} Thank you Click here to see answer by longjonsilver(2297)

 Question 13888: It says to solve the system of equations using the substitution method. I think I'm supposed to see what X and Y are equal to, but I keep getting some pretty messed up answers. Click here to see answer by LilSkittleMd(119)

 Question 13209: 3x to the 2 power plus 7 subtract 8 plus 4x to the power 2 Click here to see answer by LilSkittleMd(119)

 Question 14098: 1) v=r+at, solve for a 2) y=mx+b, solve for m 3) I=prt, solve for r 4) by+2/3=c, solve for y 5) H= (0.24)I(I)Rt, solve for r 6) P= E(e)/r, solve for r 7) 4b-5=t, solve for b 8) km+5x=6y, solve for m 9) c=3/4y+b, solve for y 10) p(t+1)=-2, solve for t 11) 5x+y/a=2, solve for a 12) 3ax-n/5=-4, solve for x Click here to see answer by rahman(247)

 Question 14229: Ok i have this math problem but i dont understand how to find the answer the problem is: 11(4-6y)+5(13y+1)=9 Click here to see answer by elima(1433)

 Question 14226: Which Statement is true if n is a whole number? a. if 20/n=5, then n/5=4 b.if 20-n=5, then n/5=4 c.if 5 x n=20, then n+5=25 d.if 20/n=5, then 20/5+n Click here to see answer by Alwayscheerful(414)

 Question 14295: Hi the equation is a simultaneous equation. I worked it out and got it wrong so I did your help in finding the correct solution. 12f-6e=-2 7e-3f=6 so can u help me? Click here to see answer by atif.muhammad(135)

 Question 14355: I need a fast and easy way to understand how to solve expressions with variables using subtiution, so could you please give me examples and if possible help me understand these types of problems better. Click here to see answer by elima(1433)

 Question 14513: I can not figure out how to simplify: -(2x - 3y) + 3(3x + y) Click here to see answer by elima(1433)

 Question 14597: This is the problem, I don't think I did it correctly. Where did I go wrong? 2(6d+3)=18-3(16-3d) my solution: 12d+6-18-48+9d 3d+6=-30 3d=-24 d=-8 Click here to see answer by longjonsilver(2297)

 Question 9785: what is the algebraic expression for the verbal expression six times a number Click here to see answer by dolphingurl(4)
 Question 9785: what is the algebraic expression for the verbal expression six times a number Click here to see answer by kelseym(1)

 Question 14723: I think the "= 0" is messing me up... (x+6)(2x-1) = 0 I tried: (1x+6)(2x-1) = 0 2x - 1x + 12x - 6 = 0 2x (squared) - 11x - 6 = 0 and now I'm stuck, I'm supposed to get 2 answers? Thanks. Click here to see answer by Earlsdon(6287)

 Question 14859: 7a-3=3-2a This is what we came up with. Not coming out right. 7a-3+3=3-2a+3 7a=2a Click here to see answer by jb007mi6(53)

 Question 14848: Please help me solve this equation: So far, i have distributed the 3 to the 1+d. I basically figured the problem and got 3+d=3. i do not know where to go from there, or even if i have the problem right.please help me. Click here to see answer by Alwayscheerful(414)

 Question 14902: OK I DONT GET HOW TO DO IT... 2/3 * 1/3??... Click here to see answer by elima(1433)