Answer:
9
Explanation:
-6(17)+7(y)=-39
-102+7(y)=-39
transpose the -102 to the other side of equal sign and change its sign to "+".
7(y)=-39+102
7(y)=62
divide both sides of equal sign to 7 to cancel the 7 in "7(y)" so that the "y" stands alone.
7(y)/7 = 62/7
y=62/7
y=9