Question 255307
{{{((C+5)/7)+((C-30)/4)=5/14}}}
step 1 - find the common denominator. It is 28.
step 2 - multiply every number by 28 to get
{{{4*(C+5)+7*(C-30)=2*5}}}
and then
{{{4C + 20  + 7C - 210 = 10}}}
step 3 - combine like terms on the left to get
{{{11C  - 190 = 10}}}
add 190 to both sides to get
{{{11C  - 190 = 10}}}
{{{11C = 200}}}
c= 18.1818....
--
checking, we get
{{{((18.1818+5)/7)+((18.1818-30)/4)=5/14}}}
{{{((23.1818)/7)+((-12.1818)/4)=5/14}}}
3.3116 - 2.9545 ~  .357054 ; 5/14 = .3571428