Solve according to the axis
−4+K−E= -4+K-E= −4+K−E=?
BBB-5-5-5CCC-4-4-4DDD-3-3-3EEE-2-2-2FFF-1-1-1GGG000HHH111III222JJJ333KKK444LLL555MMM666AAA-6-6-6NNN777
We will locate on the number line the letters and place accordingly:
K=4 K=4 K=4
E=−2 E=-2 E=−2
Therefore:
−4+4−(−2)= -4+4-(-2)= −4+4−(−2)=
We recall the rule:
−(−x)=+x -(-x)=+x −(−x)=+x
Now we get:
−4+4+2= -4+4+2= −4+4+2=
0+2=2 0+2=2 0+2=2
2