Answer: option C. (5,7)
Explanation:
first, in order to find X, simply divide that equation by 3 in order to get X by itself.
3x/3 = 15/3
x = 5
then, i just substituted the value of X, 5, into the equation on the top. this is how we find Y.
6(5) - 2y = 16
30 - 2y = 16
at this point, we divide by 2 in order to get Y by itself.
30/2 - 2y/2 = 16/2
15 - y = 8
then, we subtract 15 from both sides of the equation so that the variable, Y, is by itself completely.
-y = -7
finally, since both are negatives, we can cancel out the negative sign and ake the whole equation positive.
x = 5, y = 7
so, in conclusion, the answer is C. (5,7)