Respuesta :
The equation that can be used to find the sum of the three numbers in the given situation is (C) (x) + (x + 1) + (x + 2) = - 21.
What do we mean by equations?
The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.
For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.
A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.
So, allow x to be the first number.
Number two: x + 1
Number three: x + 2
Three numbers are added together to provide the sum x + x + 1 + x + 2.
Given that the sum of three consecutive numbers is -21.
So, (x) + (x + 1) + (x + 2) = - 21.
Therefore, the equation that can be used to find the sum of the three numbers in the given situation is (C) (x) + (x + 1) + (x + 2) = - 21.
Know more about equations here:
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Correct question:
Three consecutive integers have a sum of –21. Which equation can be used to find the value of the three numbers?
a. x + x + x = - 21
b. x + 2 x + 3 x = - 21
c. x + (x + 1) + (x + 2) = - 21
d. x + (x + 2) + (x + 4) = - 21
