Question

Please help me. It’s system of equations i really need the steps to it too. Please help me.

Answer 1

Explanation:

The given equations are :

x-3y=-4 ....(1)

3x-9y=-12 ...(2)

Multiply equation (1) by 3.

3x-9y=-12 ....(3)

Subtract equation (2) from (3).

3x-9y-(3x-9y) = -12-(-12)

In these equations,

`(1)/(3)=(1)/(3)=(1)/(3)`

It means the given system of equations have infinitely many solutions. The lines are coincident.