No. It is only true for one value of x so it is an equation. An identity must be true for all values of x. An identity equation is like saying "in other words ... ".
Minus five, plus one, equals minus four.
83
4' four
Two negatives make a positive so your equation simplifies firstly as 4ab + 3ab and finally as 7ab.
1*-7 +7-4=-4
Four minus two and three-eighths equals one and five-eighths.
Negative 5.
7
Four minus three equals one. (Or, 4 - 3 = 1.)
You have x+4=25 so you minus the four from four and you minus the four from the 25 . and then you get 21 so it is x=21
-10 - 4 = -14
Five and four-ninths