Solve the Equation: Finding the Number in x-(-13)=-23

Question

Solve the following equation:

?(13)=23 \text{?}-(-13)=-23

Video Solution

Step-by-Step Solution

First let's remember the rule:

(x)=+ -(-x)=+

Now let's rewrite the exercise in the appropriate form:

?+13=23 ?+13=-23

Then we'll add -13 to both sides to cancel out the left side:

?+1313=2313 ?+13-13=-23-13

Finally we get:

?+0=36 ?+0=-36

?=36 ?=-36

Answer

36 -36