What is the value of x in the solution to the following system of linear equations?

The correct answer is second answer x = -2

Step-by-step explanation:

It is given that,

y = x - 1 and

y = 2x + 1

To find the value of x

Let, y = x - 1  ---(1)

y = 2x + 1  (2)

From (1) and (2) we can write

x - 1 = 2x + 1

2x - x = -1 - 1

x = -2

Therefore the value of x = -2

The correct answer is second option

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90