solve and check v6a+3-5=4

Question

The root line goes all the way from 6a to 3.. 

Answer 1

sqrt(6a+3) - 5 = 4

sqrt(6a+3) = 9

6a + 3 = 81

6a = 78

a = 13

 

Check:  

sqrt(6*13 + 3) - 5 = sqrt(81) - 5 = 9 - 5 = 4.