Answers

2014-03-10T13:51:20+01:00
X+y=5 and 2x-y=4
   Please am using substitution method
To solve for y.
   x+y=5
If we sub. for x it will be : x=5-y............................eqn. (3)
Putting eqn 3 into 2:        2(5-y)-y=4
By opening the bracket, it will now be :     10-2y-y=4
Collect the like terms:      -2y-y=4-10
                                      -3y=-6
Divide both side by -3..................... :  -3y/-3 = -6/-3
Then our y =3..............
             To solve for x using eqn. 3
           x =5-y
            x=5-3
             x=2
x=2, and y=3
Did I help................................................................................
1 5 1
2014-03-10T20:09:54+01:00