SOLUTION: Can you please help me. I'm want to solve this system of equation using the substitution method. -3x+3y=4 -x+y=3 NO SOLUTION

Algebra ->  Systems-of-equations -> SOLUTION: Can you please help me. I'm want to solve this system of equation using the substitution method. -3x+3y=4 -x+y=3 NO SOLUTION       Log On


   



Question 1060739: Can you please help me. I'm want to solve this system of equation using the substitution method.
-3x+3y=4
-x+y=3
NO SOLUTION

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Same problem, different numbers.
==========================================
substitution method.
-5x-8y=17
2x-7y=-17
------------
2x-7y=-17 --> x = (7/2)y - 17/2
Sub for x in the 1st eqn.
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-5x-8y=17
-5*((7/2)y - 17/2) - 8y = 17
Multiply by 2 to eliminate fractions.
-5*(7y - 17) - 16y = 34
-35y + 85 - 16y = 34
-51y = -51
y = 1
====
x = (7/2)y - 17/2
x = -5