Question

Me ajudem pfv :
3x + 4x + 1 >_ 47
>_ significa maior ou igual pra quem n entendeu.

Answer 1

$3x + 4x + 1 \geq 47\to \\\\ 3x + 4x \geq 47-1\to \\\\ 7x \geq 46\to\\\\ x \geq \frac{46}{7}\\\\\\ S=\{xER\ |\ x \geq \frac{46}{7}\}$

Answer 2

3x+4x+1>=47
3x+4x>=47-1
7x>=46
x>=46/7