SOLUTION: solve by the substition method 3x - 2y = -12 9x + 51 = y find the solution and type the ordered pair

Algebra ->  Expressions-with-variables -> SOLUTION: solve by the substition method 3x - 2y = -12 9x + 51 = y find the solution and type the ordered pair      Log On


   

Question 391897: solve by the substition method
3x - 2y = -12
9x + 51 = y
find the solution and type the ordered pair
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
given:solve by the substition method
3x - 2y = -12
9x + 51 = y
3x-2(9x+51)=-12
3x-18x-102=-12
-15x=90
x=-90/15=-6
y=9*-6+51=-3
ans :ordered pair for point of intersection, (-6,-3)
see graph below:
+graph%28+300%2C+200%2C+-10%2C+5%2C+-10%2C+10%2C+1.5x%2B6%2C9x%2B51%29+