How to solve and show all work for the problem x - 2 = 9

x=11

Step-by-step explanation:

start with

x-2=9

then write x-2=9 with +2 underneath both sides of the equal sign

then slash through the twos, and add two and nine to get x by itself.

x = 11

Step-by-step explanation:

Add 2 on both sides, so:

x -2 + 2 = 9+ 2

Simplify:

x = 11

b. brand a is better cause you get more for less.

Step-by-step explanation:

divide 4 by 87

then divide 3 by 79

then add 26 to 79 you will get 104 for brand b

and brand a is 87