Question

inequação do 1 grau
e)5(x + 1) - 3(1 - x) ≥ 10

Answer 1

$\large\sf{}5\left(x + 1\right) - 3\left(1 - x\right) \geqslant 10 \\ \large\sf{}25x + 5 - 3 + 3x \geqslant 10 \\\large\sf{}28x + 2 \geqslant 10 \\ \large\sf{}28x \geqslant 10 - 2 \\\large\sf{}28x \geqslant 8 \\ \large\sf{}28x \div 28 \geqslant 8 \div 8 \\ \large\sf{}x \geqslant \dfrac{8}{28} \\ \\ \large\sf{}x \geqslant \dfrac{8 \div 4}{2 8\div 4} \\ \\ {\large\boxed{\boxed{  { \large \sf x \geqslant \dfrac{2}{7} }}}}$

${\large\boxed{\boxed{  { \large \sf Bons~Estudos }}}}$