Question

Please help me with this question so my son can better understand he keeps getting it wrong please help I have attached the image

Answer 1

Step-by-step explanation

To answer this question, we have to remember that for the elimination method in a simultaneous equation, the coefficient of the variable we will like to eliminate has to be equal but opposite in sign

Thus

Given the two equations

`\begin{gathered} 4x+3y=-1 \\ 3x-5y=4 \end{gathered}`

To eliminate x, we will have to

Multiply

`4x+3y=-1\text{ by 3}`

And then multiply

`3x-5y=4\text{ by -4}`

Finally,

`\text{Add the resulting equations together}`