the sum of four consecutive integers if the first integer is x

Question

Type a simplified expression 

Answer 1

Integers are whole numbers, and consecutive integers are whole numbers that are next to each other with a space of "1" between them, i.e. 1, 2, 3, 4... or -2, 1, 0, 1....

 

Thus, if the first integer is "x" the next is "x+1" then "x+2" and "x+3."

 

The sum = x+x+1+x+2+x+3 = 4x+6.

 

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Answer 2

If x is the lowest integer, then the 4 consecutive integers are

 

x, x + 1, x + 2, x + 3

 

Their sum is

 

S = x + x + 1 + x + 2 + x + 3 = 4x + 6