Question

solve using substitution: y=1/4x ; x=4(y+3)

Answer 1

y=1/4x
x=4y

x=4(y+3)

4y=4(y+3)

y=y+3

0=3

Those two equations will never equal each other

Answer 2

no solution?

Answer 3

These are the two lines created by the two equations

You have

y=(1/4)x

and

y=(1/4)x-3

Those two lines are parallel since they have the same slope.

So no, no solution

Answer 4

ahh, i see. thank you!