Question

Can anyone help solve these equations using the elimination method

Answer 1

Explanation:

dear by changing the sign by elimination method everything gets cancelled

Answer 2

Given:

The system of equation is

`15x+12y=18`

`5x+4y=6`

To find:

The solution of given system of equations by using elimination method.

Solution:

We have,

`15x+12y=18` ...(i)

`5x+4y=6` ...(ii)

Multiply equation (ii) by 3.

`3(5x+4y)=3(6)`

`3(5x)+3(4y)=18`

`15x+12y=18` ...(iii)

After subtracting (iii) from (i), we get

`(15x+12y)-(15x+12y)=18-18`

`15x+12y-15x-12y=0`

`0=0`

This statement is true for all values of x and y. So, the given system of equations has infinitely many solutions and both equations represents coincident lines.