Question

-3x+8y=4 3x-2y=8 elimination method

Answer 1

Given:

`\begin{gathered} -3x+8y=4 \\ 3x-2y=8 \end{gathered}`

Sol:.

Use elimination method then add both equation so:

`\begin{gathered} -3x+8y=4\ldots\ldots\ldots\ldots(1) \\ 3x-2y=8\ldots\ldots\ldots\ldots\ldots.(2) \\ eq(1)+eq(2) \\ -3x+8y+3x-2y=8+4 \\ 8y-2y=12 \\ 6y=12 \\ y=(12)/(6) \\ y=2 \end{gathered}`

put the