If the example is y= -2x and y= x+3 does the point (2,5) make either equation true?

the second one is true

Step-by-step explanation:

5=-4. 2nd one 5=5

need more info

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.