Question

Помогите
1)(х-53)*(-23+19)=0
2)105:(-y-87)-190=205

Answer 1

1)(x-53)×(-23+19)=0
x-53×(-4)=0
x+212=0
x=-212
2)105:(-y-87)-190=205
$frac{105}{ - y - 87} - 190 = 205$
$frac{105}{ -( y + 87)} = 205 + 190$
$frac{105}{ - (y - 87)} = 395$

-105=395(y+87)
-105=395y+34365
-395y=34365+105
-395y=34470
$y = - frac {6894}{79}$
$y = 87 frac{21}{79}$