Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
How to transpose/rearrange these equations?
Make 'x' the subject
1) ax+b=bx
2) (x/a) - 1 = (x/b) + 2
-----------------------------------
if x were to be the subject is it ok if x is on the other side of the equation too?
for example, my answer for 1) was x= (bx-b)/a where x was before and after the equal sign.
thanks
6 Answers
- Mane LandLv 41 decade agoFavourite answer
If X is the subject, only x should be on one side of the equation and there shouldn't be any x on the other side......
1) ax+b=bx
ax - bx = b
x(a-b) = b
x = b/(a-b)
2) (x/a) - 1 = (x/b) + 2
x/a - x/b = 2 + 1
x (1/a - 1/b) = 3
x (b-a)/ab = 3
x = 3ab/(b-a)
Source(s): .................... - VORaLv 61 decade ago
Make 'x' the subject
1) ax+b=bx
ax = bx - b = b(x-1)
(x-1)/x = a/b
1-1/x = a/b
1/x = 1-a/b = (b-a)/b
Therefore x = b/(b-a) >>>>>>>>>>Answer
2) (x/a) - 1 = (x/b) + 2
(x/a) - (x/b) = 3
x(b-a)/ab = 3
x = 3ab/(b-a) >>>>>>>>>>>Answer
-----------------------------------
if x were to be the subject is it ok if x is on the other side of the equation too?
for example, my answer for 1) was x= (bx-b)/a where x was before and after the equal sign.
This is wrong. When x is to be the subject, you have to express the value of x in terms of the other variable or variables. Therefore LHS should be x only. There should not be any x in the RHS.
- Anonymous4 years ago
First i detect it greater uncomplicated to rewrite something that isnt grouped mutually, consequently, the water. MgCO3 + HCl --> MgCl2 + H2O + CO2 First shall we start up with balancing the hydrogens and spot the place we stand. There are 2 hydrogens on the acceptable area, and between the left... so shall we make it 2 on the left. MgCO3 + 2HCl --> MgCl2 + H2O + CO2 shall we see if something isn't balanced. Left area / stunning area Mg: a million/a million C: a million/a million O: 3/3 H: 2/2 Cl: 2/2 appears like we are all balanced, so your very final, balanced equation is: MgCO3 + 2HCl --> MgCl2 + H2O (or HOH, same element) + CO2 *Sorry for the postpone in answering your question, YA has been down
- Anonymous1 decade ago
I'm not sure what you mean by make 'x' the subject, but what I always learned is that you are solving for 'x', if this is true in this case, then your answer would be:
1.) x= ax/b + 1
not sure about #2
- ?Lv 61 decade ago
1) ax+b=bx
ax - bx = -b
x(a - b) = -b
x = -b/(a - b) ---> final answer!
2) (x/a) - 1 = (x/b) + 2
(x/a) - (x/b) = 3
x(b-a)/ab = 3
x = 3ab/(b-a) ---> final answer!
- Engr. RonaldLv 71 decade ago
1) ax+b=bx
ax-bx=-b
x(a-b)=-b
.......-b
x=-------- answer//
.....(a-b)
.....x...........x
2)[------ - 1=-------+2]ab
.....a............b
bx-ab=ax+2ab
bx-ax=2ab+ab
x(b-a)=3ab
.....3ab
x=-------- answer//
.....b-a
Source(s): http://www.mathway.com/answer.aspx?p=calg?p=SMB15a... http://www.mathway.com/answer.aspx?p=calg?p=(xSMB1...