X(x+1)= x -2 in word form pls

12/18 reduce tonlowest term if possible​

Do you need mathematics everyday? why or why not? ​

Mildred has seven grades on her report card. the overall average of these seven grades is 77%. after looking more closely at her report card, mildred discovered that her english grade was incorrectly recorded as 18% instead of her actual grade of 81%. determine mildred’s correct report card average