Answer:
-2
Step-by-step explanation:
2x + y = 7 is the equation of the given straight line.
Let us arrange the above equation in slope-intercept form as
2x + y = 7
⇒ y = - 2x + 7 ...... (1)
The slope-intercept form of a straight line is given as y = mx + c, where, m is the slope and c is the y-axis intercept of the straight line.
Therefore, - 2 is the slope of the given straight line (1).
Hence, the slope of the line that is parallel to (1), is -2. (Answer)
{Slope of two parallel straight lines are of same value}