Answer:
-7
Step-by-step explanation:
arithmetic sequences are consistant sequences by adding or subtracting a constant term, in this case to get from -6 to -13, you subtract 7. And to get from -13 to -20 you subtract 7 again. The next number in the sequence would be -27 as -20-7= -27
Hope this helps!
Common difference = 2nd term - first term
= -13-(-6)
= -13+6
= -7
B.) Addition*Additive property of equality
You add 34 to both sides of the equation to find what x was equal to
Hope I helped
