Question 24868
1.7/8x=14
multiply each side by the reciprocal of {{{7/8}}}, which is {{{8/7}}};
x=14{{{(8/7)}}}
x={{{112/7}}}
x=16
2.{{{x/4}}}+{{{3x/5}}}=17
find the LCD;
{{{5x/20}}}+{{{12x/20}}}=17
{{{17x/20}}}=17
multiply each side by 20;
17x=17(20)
17x=340
Divide each side by 17;
x=20
3. 5a-1  =-5 1/4
   8
This problem, I'm not sure what you are asking, how the problem is suppose to be;
4. 5=a/6
multiply 6 to each side;
5(6)={{{a/6}}}(6)
30=a
Hope this helps, if you can'nt figure out #3 e-mail it to me agian, you may have just made a type error.
=)