The product of a number and eleven is seventy-seven. equation:
n: i already know (7)
What is the equation

11n=77

And you already know what n is so

sorry if this doesn't help

5+2x=a

asdasdsaadsaddsasds

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,