Answer:
6
Step-by-step explanation:
You can do this algebraically:
Step 1: Write the unknown number as x
The directions say subtract four from the number, and is equal to 2, so
x - 4 = 2
Step 2: Add four to both sides
x = 6
Answer:
-2 - (-4) = 2
Step-by-step explanation:
? - (-4) = 2
The double negative makes a positive. So in reality, you're adding a positive.
? + 4 = 2
In this step, many can just guess the number just by looking at the equation, but here's the long way:
? + 4 = 2
Subtract 4 from both sides
? = 2 - 4
and the answer is ...
-2 = 2 - 4
or -2 - (-4) = 2
