4(5x-20)= -20
20x-80= -20
+80 +80
____________
20x=60
_______
20
x=3
To figure out R, add 1.97+0.65 together. 1.97+.065=2.62
Answer: The first number that appears in both sequences is 28.
Step-by-step explanation:
Let's write down numbers from each of the sequences
Sequence 1) We need to start from 7 and multiply 4
7x4=28, 28x4=112
The sequence is 7,28,112...
Sequence 2) We need to start from 8 and add 5
5+8=13, 13+5=18, 18+5=23, 23+5=28
The sequence is 8,13,18,23,28...
They both have 28