гдз математика 6 клас мерзляк

Вправа 1020

1) –5x < 20;
x = –1; –2; –3;
2) –9x ≤ 45;
x = –1; –2; –3; –4; –5;
3) –4х ≤ 35;
x = –1; –2; –3; –4; –5; –6; –7; –8.