Answer:
2x - y = -7
Step-by-step explanation:
The equation y = 2x+7 needs to be written in standard form [tex]Ax+By=C[/tex] where A must be positive.
To convert to standard form, subtract 2x from both sides.
-2x + y = 7
Multiply each term by -1.
-1(-2x + y =7)
2x - y = -7
