Question

how to solve f(x)=2x+1 when x=a?​

Answer 1

• f(x)=2x+1

$\\ \bull\tt\looparrowright f(a)$

$\\ \bull\tt\looparrowright 2(a)+1$

$\\ \bull\tt\looparrowright 2a+1$

Answer 2

Answer:

2a+1

f(a)=2a+1

so, the answer u get is 2a+1