Question #22219

how many solution does this system have
y=5x-1
10x-2y=5
a. one solution
b.no solution
c.infinite solution
d.none of these

Expert's answer

y=5x-1

10x-2y=5We can substitute y=5x-1 to the secondequation

10*x-2*(5x-1)=5

10x-10x+2=5

2=5

obtained equality is false so there is no solution, right answer b.

10x-2y=5We can substitute y=5x-1 to the secondequation

10*x-2*(5x-1)=5

10x-10x+2=5

2=5

obtained equality is false so there is no solution, right answer b.

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