#1: 4(x + 3)
We just have to distribute the 4 throughout the rest of the problem. So, (4 times x) + (4 times 3) = 4x + 12
#2: -7(4 - y)
This is the same concept, but with a negative sign at the front. So, (-7 times 4) - (-7 times y) = -28 + 7y
Answer:
60
Step-by-step explanation:
The value of n.
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)
