They are both the same equation, therefore the solution set has an infinite number of solutions. All ordered pairs on the line <span>y = -4x - 3 are solutions. </span> You know they are the same equation because if you subtract 3 from both sides of the equation -4x = y + 3, you get <span>y = -4x - 3. </span>
To find what profit they made, subtract what they earned from what they spent money on. 275-55=220. They made a total of $220 after paying for supplies. I hope this helps! :)
