Investigating the ingredients in food
Homework
What surface a car goes fastest on
Magnets attraction towards eachother
Err... can someone explain this to me too?
English, and it belongs to the Germanic branch, West Germanic Group.
Answer:
19
20
21
Explanation:
Givens
Let the first integer = x - 1
Let the second = x
Let the third = x + 1
Equation
x - 1 + x + x + 1 = 3x
Solution
3x = 2(x + 1) + 18 Remove the brackets
3x = 2x + 2 + 18 Combine the terms on the right
3x = 2x + 20 Subtract 2 x from both sides
x = 20
x - 1 = 19
x +1 = 21
Check
Sum = 60
2*Largest number = 42
18 more than 42 = 60
