Question

Помогите пожалуйста!! ​

Answer 1

Ответ:

1)a = -1, a = 4

2)b = 7, b = 9

3)x = -4, x = 10

4)y = -8, y =4

Пошаговое объяснение:

1)$left { {{a>0} atop {a+5=4}} right. \left { {{a>0} atop {a=-1}} right. \\left { {{a<0} atop {-5-a=4}} right. \left { {{a<0} atop {a=-9}} right.$ 2)$left { {{b>0} atop {b-8=1}} right. \left { {{b>0} atop {b=9}} right. \left { {{b<0}\ \\atop {-b+8=1}} right. \left { {{b<0} atop {b=7}} right.$

3)$left { {{x>0} atop {x-3=7}} right. \left { {{x>0} atop {x=10}} right. \\left { {{x<0} atop {3-x=7}} right. \left { {{x<0} atop {a=-4}} right.$4)$left { {{y>0} atop {y+2=6}} right. \left { {{y>0} atop {y=4}} right. \\left { {{y<0} atop {-y-2=6}} right. \left { {{y<0} atop {y=-8}} right.$