Which of the following don't have any solutions? A)

15x-45=75x+7515x−45=75x+7515
B

15x-45=15x+7515x−45=15x+7515,

C

-45x-45=-75x+75−45x−45=−75x+

D

45x-45=-15x+7545x−45=−15x+75

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

1 1/7 hope i

step-by-step explanation:

8/7 = (1 * 7 + 1) / 7 = 1 + 1/7 = 1 1/7