Question

rezolvati in r inecuatile. 2×+1 mai mic sau egal cu 7

Answer 1

$2x + 1 \leqslant 7$

$2x \leqslant 7 - 1$

$2x \leqslant 6 \: | \div 2$

$x \leqslant 3$

$x \: \in \: ( - \infty ,3]$