Question

solve 15(x-4) = 45 by trial and error method​

Answer 1

Answer:

x = 7 is  a solution of 5(x-4) = 45

Step-by-step explanation:

Solve by using trial and error basic

15(x-4) = 45

Put x = 1

15(x-4) = 15 ( 1-4)  

= 15 (-3) = -45

So, x = 1 is not a solution of 5(x-4) = 45

Put x = 7

15(x-4) = 15 ( 7-4)  

= 15 (3)

=  45

So, x = 7 is  a solution of 5(x-4) = 45