2/3x+7=7-n
U FLIP IT!!
-n+7=2/3x+7
so you add -7 to both sides because its the opposite sign, they both cross out and you're left with -n=2/3x
divide -n/2/3 *-n is really -1*
2/3 times -1 is -2/3
when you divide u flip the fraction but its only a one so you multiply either way 2/3*-1/1 would be -2/3
x=-2/3
if this isn't the answer it would be 42...because the equation would be 2/3x+7=n-7 and when you solve this it equals 42.
But to me -2/3 is the answer, I'm not sure if 42 is the answer but trust me your find out...