4xc-5=31
4xc-5+5=31+5
4xc=36
(4xc)/4=36/4
xc=9
(xc)/x=9/x
c=9/x
by transitive property
A.
2a. (a, b and c are all equal.)
a= (+a) or a= (-) b= 2a b= 2a c= (-a) c= (+a)
c
Yes.
The answer depends on what R and C are.
a - b = c -(a - b) = -c b - a = -c
C equals the square root of 1000 or 31.622776601683793319988935444327...
Equals C equals is not a correct bond. In order to create a bond, you will need to have an elemental symbon on either side of the equal sign. C equals C would be a correct bond type.
49 + c units
a = 0.8