Question 148432
My first question is #10. ax/b + cx/d = e 
and #11 a/bx + c/d=e; for both of them i need to solve for X.
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10. ax/b + cx/d = e 
Multiply by bd to eliminate fractions
adx + bcx = bde
x*(ad + bc) = bde
{{{x = bde/(ad+bc)}}} that's all you can do, no further simplification is possible.
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11. a/bx + c/d=e
There's more than one way to go at this, but you get the same answer.
a/bx = e - c/d
a/bx = (de-c)/d
Invert
bx/a = d/(de-c)
bx = ad/(de-c)
{{{x = ad/(b*(de-c))}}}