-12 + (-5) - 7 - (-13) +4

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nisarg's profile pic

nisarg | Student, Grade 11 | (Level 1) Valedictorian

Posted on

-12 + (-5) - 7 - (-13) +4

so first change the signs in front of the negatives to make them the opposite function

-12-5-7+13+4

-17-7+13+4

-24+13+4

-11+4

-7 would be your answer

acompanioninthetardis's profile pic

acompanioninthetardis | Student, Undergraduate | (Level 1) Valedictorian

Posted on

-12 + (-5) - 7 - (-13) +4

go from left to right and remember addition and subtraction rules using negatives.

-17-7+13+4

-24+13+4

-20+13

-7 is your answer. 

jess1999's profile pic

jess1999 | Student, Grade 9 | (Level 1) Valedictorian

Posted on

-12 + (-5) - 7 - (-13) + 4

To solve this, remember that two signs of negative will make a positive, and a negative with a positive will make a negative.

By knowing that, your equation should look like

-12 - 5 - 7 + 13 + 4 Now subtract -12 with -5

By subtracting, your equation should look like

-17 - 7 + 13 + 4 now subtract -17 with -7

By subtracting, your equation should look like

-24 + 13 + 4 Now, add -24 with 13

By adding, your equation should look like

-11 + 4 Lastly, add -11 with 3

By adding, your equation should look like

= -7 which is your answer

llltkl's profile pic

llltkl | College Teacher | (Level 3) Valedictorian

Posted on

As per the rule of multiplication of signs ''Two like signs make a positive sign, and two unlike signs make a negative sign.''

In the given problem, when we remove the brackets the signs get multiplied and the resulting sign will be according to the above rule.

So,
-12+(-5)-7-(-13)+4

=-12-5-7+13+4

=-24+17

=-7

Therefore, the answer is -7.

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