Question

Solve the system of linear equations -x+5y=15 -1/5x+y=3​

Answer 1

`(0,3)`

Explanation:

`\begin{bmatrix}-(1)/(5)\left(15-5y\right)+y=3\end{bmatrix}`

`\begin{bmatrix}-3+2y=3\end{bmatrix}`

`+3`
`+3`

`2y\f=6`

÷
`2` ÷
`2`

`y=3`

`\mathrm{for\:}x=15-5y`
`\mathrm{substitute\:}y=3`

`x=15-5\cdot \:3`

`5*3=15`

`15-15=0`

`(x,y)`

`(0,3)`