Question

Find the value of Q in the following system so that the solution to the system is ....

Answer 1

We are given

first equation:

`x-3y=4`

second equation:

`Qx-6y=8`

Our second equation will be same as first equation if we multiply 2 in first equation

so, we will multiply 2 in first equation

`2*x-2*3y=2*4`

`2x-6y=8`

now, we can see that this equation is same as second equation

so, we can compare both

and we get

`Q=2`..............Answer