Solve each equation below for the given variable. explain how u got ur ) a. 4x/5=x-2/7 b. -3(2b-7)= -3b+21-3b c.6-2(c-3)=12

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.

step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

the answer would be a 24

step-by-step explanation:

c=2πr=2·π·3=24