7. (07.03 LC) The steps below show the incomplete solution to find the value of x for the equation 5x - 3x - 5 = -3 + 23:
Step 1: 5x - 3x - 5 = -3 + 23
Step 2: 5x - 3x - 5 = 20
Step 3: 2x - 5 = 20
Which of these is most likely the next step? (1 point)
2x = 4
2x = 8
2x = 15
2x = 25

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

it would open into a square depending on the type of envelope i’m not sure about the second part