SOLUTION: Please help solve {{{ (2x+9)/(4x-15)=5/7 }}}....I know that x=23 but can't figure out how to show it.
Algebra.Com
Question 335896: Please help solve ....I know that x=23 but can't figure out how to show it.
Found 2 solutions by jim_thompson5910, ankor@dixie-net.com:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.
Cross multiply.
Distribute.
Subtract from both sides.
Subtract from both sides.
Combine like terms on the left side.
Combine like terms on the right side.
Divide both sides by to isolate .
Reduce.
----------------------------------------------------------------------
Answer:
So the solution is
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
solve
The easiest way is cross multiply this guy
7(2x + 9) = 5(4x - 15)
:
14x + 63 = 20x - 75
:
63 + 75 = 20x - 14x
:
138 = 6x
x =
x = 23
:
:
Check it in the original problem x=23
RELATED QUESTIONS
100000=x-(.2x)
please help solve and show work. I know x = 125000 but I cannot figure (answered by rfer)
Please help me solve this. I have done it a million times and keep getting the wrong... (answered by jim_thompson5910)
Please show me how to solve:
x^2=8x-5
I know I have to use the quadratic formula, but I (answered by ewatrrr,solver91311)
Please help me solve this problem. There's a table, and it looks kind of like this:
x (answered by solver91311,scott8148)
HELP PLEASE!
I for some reason can not understand how to figure out this problem.
It (answered by Alan3354)
4+3[2²-3(7-9)] I already know the answer is 34, but every time I try to solve it I get a (answered by stanbon)
Please show me how to solve:
12x^2-11x=5
I know I have to use the quadratic formula,... (answered by ewatrrr)
"If 3x+7=8 then what is the value of 2x-3?"
I tried to figure out what x is by... (answered by stanbon)
I am trying to figure out how to solve this problem using the substitution method. I know (answered by ewatrrr)