SOLUTION: What is the solution of the system of equations?-y 3x=6 & y=-6x 12

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: What is the solution of the system of equations?-y 3x=6 & y=-6x 12       Log On


   

Question 938809: What is the solution of the system of equations?-y 3x=6 &
y=-6x 12

Found 2 solutions by ewatrrr, kros:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
-y+3x=6
y + 6x = 12
9x = 18
x = 2 and y = 0 y+%2B+6%2A2+=+12
Ordered Pair (2,0) the Solution for this System

Answer by kros(3) About Me  (Show Source):
You can put this solution on YOUR website!
Use substitution method...=>
[( -(-6x +12)+ 3x)=6]
, OR
Simply,
Write the second equation as:
y + 6x=12 & use elimination method,
-y +3x=6
y +6x=12
add the two eqn:
9x=18 => x=2, y=0