A scientist uses a submarine to study ocean life. • She begins 175 feet below sea level. • After descending for 6 seconds, she's 225 feet below sea level. Find the rate of change in the submarine's elevation in feet per second. Round your answer to the nearest tenth.

2x+ 2y = -2

Step-by-step explanation:

Given the equation of a line as x + y = -1

To get the equation of the line P so the set of equations has infinitely many solutions, we will have to multiply the given equation by a factor

Multiplying the given equation by a factor of 2;

Given x + y = -1

Multiplying both sides by 2;

2(x + y) = 2(-1)

2x+ 2y = -2

Hence the required equation is 2x+ 2y = -2