Question

Dadas as funções f(x) = 4x + 2m e g(x) = 2x -5, calcule o valor da constante m, sabendo que f(1) + g(2) = 3.​

Answer 1

$\boxed{\begin{array}{l}\sf f(1)=4\cdot1+2m\\\sf f(1)=4+2m\\\sf g(x)=2x-5\\\sf g(2)=2\cdot2-5\\\sf g(2)=4-5\\\sf g(2)=-1\\\sf f(1)+g(2)=3\\\sf 4+2m-1=3\\\sf 2m=3+1-4\\\sf 2m=0\\\sf m=\dfrac{0}{2}\\\sf m=0\end{array}}$