Answer:
X=3
Step-by-step explanation:
2(x+1)+4-4=12-4
2(x+1)=8
2(x+1)/2=8/2
x+1=4
x+1-1=4-1
x=3
31 terms.
218 = 8 + (n-1)7
210 = (n-1)7
30 + n-1
n = 31
There would be 31 terms in the given AP.
Answer:1 1/2
Step-by-step explanation:trust me bro