Question

Find two consecutive even integers whose sum is -50. Which of the following equations could be used to solve the problem? 2x = -50 2x + 1 = -50 2x + 2 = -50 x2 + 1= -50

Answer 1

consecutive even integers are 2 apart

so they are x and x+2

their sum is x+x+2

the sum is -50

so x+x+2=-50 would be the equation

we can simplify it to get 2x+2=-50

the answer is the 3rd option

Answer 2

let the number be x
first consecutive no. 2x
second no. 4x
a.t.q.
2x+ 4x = - 50