An underestimate of 532 times 11 is 5852
Error: They subtracted 9x from both sides when they should have subtracted 12. You can’t subtract unlike terms
Correct: x=-5/16
Subtract 12 from both sides to get -5 on the left and add 7x and 9x to get 16x. Divide both sides by 16 to isolate x.
Hi I think this answer would be b. A is backwards. C and d do not make sense
she can only have 4 classes on the schedules right?
