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bertha4082
21.08.2019 •
Mathematics
What is the solution to the equation –13+x = –4?
a. –17
b. 9
c. –9
d. 17
Solved
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Ответ:
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
Ответ:
-56
Step-by-step explanation:
7 x (-7 + 15)
=7 x (-8)
=-56
hope this helped <3