The graph shows the function f(x)=4x+21 and g(x)=−(1/3)^x+4 +6 .



What are the solutions of the equation 4x+21=−(1/3)^x+4 +6 ?




x=−6 and x=−4

​ x=−6 ​ and x=−5.75


​ x=−6 ​ and x = 3

x = 3 and ​ x=−5 ​