Draw out a number line. Plot the values -86, 0 and +45. To go from -86 to 0, you need to travel 86 meters. Then to go from 0 to 45, you need to travel another 45 meters.
In total, you have gone 86+45 = 131 meters (in the up direction)
Answer:
134
Step-by-step explanation:
the line where B and X are equal to 180 so you subtract 180 from B witch is 134
It would be 13 because you are adding 5 and 8
9a^2-6ab+12ac-8bc
=3a(3a-2b)+4c(3a-2b)
=(3a+4c)(3a-2b)
There you go. Have fun!