Answer:
for the second question u have asked
Step-by-step explanation:
So with this, I will be using the substitution method. With the first equation, substitute (y+3) into the x variable and solve for y:

Next, now that we have the value of y, substitute it into either equation to solve for x:

<u>And this is how you get your final answer (5,2).</u>
10
Therefore, the greatest common factor of 30 and 50 is 10.