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.$