Question

How many solutions does the system of equations have?
y=6x+2 and 3y-18x=12

One
Two
Infinitely many
None

Answer 1

multiply first by 3
THEN ADD by the second

Answer 2

y=6x+2
y-6x=2 ---> *3

Answer 3

So multiply both equations by three??

Answer 4

no first one

Answer 5

y-6x=2 ---> *3
goes to
3y-18x=6
now compare with other one
3y-18x=12
that means
12=6
now wahts the answer ?

Answer 6

The lines are parallel, no solution.

Answer 7

Ohh.. No solution. Thank you!

Answer 8

What about x-2y=6 and 3x-6y=18 ???

Answer 9

multiply 1st eqn by 3 n u got the same eqn as the 2nd one. so theres infinite no. of solution as well :)

Answer 10

wouldn't there be one?

Answer 11

Nope u have 2 unknown, x and y, but only one eqn cuz' the 1st n 2nd eqn are the same.

Answer 12

so, Infinitely many?

Answer 13

Correct :)

Answer 14

Thanks. :D