Question

Encontre o valor de fog(3) e gof(-2), respectivamente para: f(x)= 2x-3 e g(x)= x+1

Answer 1

$\boxed{\begin{array}{l}\sf g(3)=3+1=4\\\sf fog(3)=2\cdot4-3=8-3=5\\\sf f(-2)=2\cdot(-2)-3=-4-3=-7\\\sf gof(-2)=-7+1=-6\end{array}}$