Question

How many solutions does this system have?
-3x+6y=10
-3x+6y=-4

Answer 1

If you had a system with x + y = 5 and x + y = 6, what would be your first thought? There is no pair of numbers such that when we add them together, they make two different numbers - every sum of a pair of numbers is unique. Hopefully that notion should help with this question.

Answer 2

none

Answer 3

these are two parallel lines, so no solution

Answer 4

Thank you so much!!!

Answer 5

Can you help me with one more?

Answer 6

Which method would be the simplest way to solve the system?
7x+5y=19
-7x-2y=-16

Answer 7

Simultaneous equations, adding the second row to the first to cancel out the x's

Answer 8

So basicly elimination?

Answer 9

Aye, that one :)

(sorry, never could remember the names of sim equation methods!)

Answer 10

It's totally fine, you helped me still. Thanks!!!

Answer 11

No problem :)