solve the equation 2(a,3,c)+3(c,7,c)=(5,b+c,15) for a,b,c
i got to setting up 3 equation
i don't know where to go from here
Follow Math Help Forum on Facebook and Google+
Just isolate the variables then use substitution.
then put that in one of the other equations... then do it again until you only have 1 variable in the equation. Then repeat.
I just realized that the last equation only has variable 'c' in it... That would be the easiest one to use...
then put "c" in equation 1 and 2 to get values for "a" and "b"
View Tag Cloud