b= 1/2 (a - c)
a-2b=c
c= a-2b
1
c= (a+d) / 2b
If a=2bc+db= (a - d) / 2c If a=2b+c b=1/2(a-c)
c= a-2b
(a+d)/2b=c
a-2b=c
d=a-2bc
1
c= (a+d) / 2b
If a=2bc+db= (a - d) / 2c If a=2b+c b=1/2(a-c)
a = 2b + c then a - 2b = c ie c = a - 2b
(a-d)/2c=b
The equals sign goes at the beginning of a formula, as all formulas must begin with one. It is also possible to have the equals sign at other parts of a formula too.
Not sure about the original formula, but one that works is b = a/(2c + 1)
All formulas must begin with the equals sign. That is how Excel knows it is a formula.