Question

The second term of a sequence is 10.
The term-to-term rule is: 'Multiply by 4 then subtract 2.
What is the first term of the sequence?​

Answer 1

let the first term be x

Therefore, 4x -2=10

4x=12

X=3

Answer 2

Answer:

The first term of the sequence is 3

Step-by-step explanation:

$lets \: take \: the \: number \: be \: x \\ (x \times 4) - 2 = 10 \\ 4x - 2= 10 \\ 4x = 10 + 2 = 12 \\ x = \frac{12}{4} = 3$