N=-6
-6 minus 6 is -12
-12 /3 is -4 since the negative doesn’t cancel out
Since the denominator of any fraction can’t =0, then 3x-4 can’t = 0. What will make that 0? Let’s see: 3x-4=0. 3x=4. X= 4/3. Everything else will work!
X in this equation is about 4 and a half i know because i used a cacisnatter
direct proportion y=kx , k is constant and k does not equal to 0.
17.5=k(21)
k=5/6
when x =39
y=5/6 ×39
y=32.5