SOLUTION: IF {{{3x-4/2+9/10=x/20}}}, what is x equal to?

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: IF {{{3x-4/2+9/10=x/20}}}, what is x equal to?      Log On


   



Question 260128: IF 3x-4%2F2%2B9%2F10=x%2F20, what is x equal to?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
IF 3x-4%2F2%2B9%2F10=x%2F20, what is x equal to?
Multiply equation by 20, cancel the denominators, results:
20(3x) - 10(4) + 2(9) = x
:
60x - 40 + 18 = x
:
60x - 22 = x
60x - x = 22
59x = 22
x = 22%2F59
:
:
Check solution in the original equation using a calc
3%2822%2F59%29-4%2F2%2B9%2F10=%2822%2F59%29%2F20
1.1186 - 2 + .9 = .0186
.0186 = .0186