Posted by da on Saturday, January 19, 2013 at 3:47pm.
what steps someone would take to use your method (substitution)

algebra 1  PsyDAG, Sunday, January 20, 2013 at 12:43pm
e = 4d
e + d = Whatever number you want.
Substitute 4d for e in second equation and solve for d. Insert that value into the first equation and solve for e. Check by inserting both values into the second equation.