Answer:
4 I guess..........not sure but my answer is 4
7(x+4)=0
7x+28=0
7x=-28
X=-28/7
X=-4
Answer:
-1
because you are adding up to 0 to get back to the positive.
98.
The numbers increase by intervals of 8. You need 16 more terms until you reach the 20th term, so 16*8=128.
128-30=98.