Question 94007
Assume the problem is:
1) {{{(a/b)(2x-12)}}} = {{{c/d}}}
:
multiply equation by b:
a(2x - 12) = {{{bc/d}}}
:
divide both sides by a:
2x - 12 = {{{bc/ad}}}
:
Add 12 to both sides:
2x = {{{bc/ad}}} + 12
:
Divide both sides by 2
x = {{{bc/(2ad)}}} + {{{12/2}}}
:
x = {{{bc/(2ad)}}} + 6
:

:
Assume the problem is
2) {{{((a-c))/((x-a))}}} = m 
:
Cross multiply and you have:
m(x-a) = a - c
:
Divide both sides by m:
x - a = {{{((a-c))/m}}}
:
Add a to both sides:
x = a + {{{((a-c))/m}}}
:
They may want it further simplified:
x = {{{((am + (a - c)))/m}}}  =  {{{(a(m+1)- c)/m}}}
:
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