SOLUTION: For this question you will have to use substitution. Please help me solve this problem : {{{ 3x + y = 6 }}} {{{ y + 2 = x }}}

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: For this question you will have to use substitution. Please help me solve this problem : {{{ 3x + y = 6 }}} {{{ y + 2 = x }}}      Log On


   

Question 372880: For this question you will have to use substitution.
Please help me solve this problem : +3x+%2B+y+=+6+
+y+%2B+2+=+x+
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
The bottom eqn is the same as y = x - 2. Substitute this into the top eqn:
3x + x - 2 = 6,
4x = 8,
x = 2. This gives y = 2-2 = 0.