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4 February, 17:22

What is the solution to the equation - 13+x = - 4?

a. - 17

b. 9

c. - 9

d. 17

+5
Answers (1)
  1. 4 February, 17:38
    0
    -13+9=-4

    When you add a positive number to a negative number the answer will get closer to 0 and then progress up in positive numbers. In this case we are finding which of the numbers equals - 4 when added to - 13. Remember, if you add a negative to a negative you will get a negative.

    -13+-17=-30 This is the wrong answer.

    -13+-9=-21 This is the wrong answer.

    -13+17=4 This is the wrong answer. (This is positive 4 we are trying to find - 4)

    -13+9=-4 This is the right answer

    Therefore X=9
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