Answer:
Step-by-step explanation:multipy -4x and 4 by 2 were the 8x and the -8x would cancel then add and bring down answer of x=15
Answer: 52x+4
Step-by-step explanation: Do 16(2x-1)+4(5x+5) and get 52x+4.
You'd times15x25 and you'll gladly get the answer
Answer:
78
Step-by-step explanation:
add them all together and and divide by how many they are -thats the meaning of the mean
81+88+69+65+87=390
390divide by 5=78
i divided by 5 becasue there are 5 numbers
