b=37 since if b-13 = 24 add 13 to each side of the equation b=37
-13 + 24 = 11
24 Bottles of Beer in a Case
If the question is, "What is b if b + 24 = 19 ?", then : b + 24 = 19 b = 19 - 24 = -5
b = 40 - a, c = 42 - a so b + c = 40 - a + 42 - a, ie 82 -2a = 34 so a = 48/2 ie 24 b = 40 - 24 ie 16 and c = 42 - 24 ie 18
b-11 = -13 add 11 to BOTH sides b = -2
a=24 b=16 c=18
Example: 24 = 42
-24
24 = 42
30
Whatever you do to one side of the equation (equals sign), you must do to the other: 43 - b = 24 ⇒ 43 - b + b = 24 + b ⇒ 43 = 24 + b ⇒ 43 - 24 = 24 + b - 24 ⇒ 19 = b So b is 19.