SOLUTION: Solve by substitution. y = 4 – 3x and 3x + y = 5

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Question 1093219: Solve by substitution. y = 4 – 3x and 3x + y = 5
Found 2 solutions by Alan3354, MathLover1:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by substitution. y = 4 – 3x and 3x + y = 5
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Sub for y in the 2nd eqn.

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
y+=+4+-3x.....eq.1
3x+%2B+y+=+5+.....eq.2
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substitute y from eq.1 in eq.2
3x+%2B+4-3x+=+5+.....eq.2......solve for x
cross%283x%29+%2B+4+-cross%283x%29+=+5+
+4++=+5+-> Since this equation is not true, we have an inconsistency.
So there are no solutions. The simple reason is the given equations represent two parallel lines that will never intersect. Since no intersections occur, no solutions exist.
+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+4+-3x%2C+5+-+3x%29+