a+2bc + d is d= a - 2bc
c= (a+d) / 2b
a=2 BC - d is c=2(a + b)
d = a - 2bc
If a=2bc+db= (a - d) / 2c If a=2b+c b=1/2(a-c)
If: a = b+c+d Then: c = a-b-d
(a-d)/2c=b
d=a-2bc
(a+d)/2b=c
c= (a+d) / 2b
a=2 BC - d is c=2(a + b)
d = a - 2bc
d = a - 2bc
If a=2bc+db= (a - d) / 2c If a=2b+c b=1/2(a-c)
None.
b = 1/2 (a - c) or for a = 3b - 2c: b = 1/3 (a + 2c) for a= 2bc + d is b= (a-d)/2c a= 2b +c is c= a - 2b b=1/3(a-2c)
If: a = b+c+d Then: c = a-b-d
d = a - 2bc