Consider the following process. Start with the numbers 1 and 4. A third number is created by taking the sum of the previous two numbers, which in this case gives us 5. Then, a fourth number is obtained by adding 4 and 5. This process can be repeated to create a sequence of numbers.

We get a sequence of numbers:

Step-by-step explanation:

Start with the numbers 1 and 4. A third number is created by taking the sum of the previous two numbers, which in this case gives us 5. Then, a fourth number is obtained by adding 4 and 5.  

We have:

We get a sequence of numbers:

.

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3