You can
put this solution on YOUR website!1.
Solve by elimination:

...(1)
multiply both sides by

...(2)
multiply both sides by

...(1)

...(2)

...(1)
..
multiply both sides by

...(2)

...(1)
subtract (2) from (1)

...(2)

...(1)
-

...(2)
---------------------------------

.move

from the left to the right

.......divide

by

.......simplify

.......

.......
2.
Solve by elimination:

...(1)
..
multiply both sides by

...(2)

...(1)
. subtract (2) from (1)
-

...(2)
------------------------------------------

.divide both sides by
3.
Solve by substitution:

...(1)
substitute (2) in (1)

(2)

...(1)

...(1)

...(1)
move

from the left to the right

...(1)

...(1)
divide both sides by

...(1)

...(1)
now substitute

in (2)

(2)

(2)

(2)
So, your solution is:

and