Question

Решите систему неравенств

1-0,5х<4-х
9-2.8х>6-1.3х

Answer 1

$left { {{1-0.5x<4-x} atop {9-2.8x>6-1.3x}} right.$

$left { {{0.5x<5} atop {-1.5x>-3}} right.$

$left { {{0.5x<5} atop {1.5x<3}} right.$

$left { {{x<10} atop {x<2}} right.$

Ответ: (-∞;2)