X-(-8)=13x-57=-493-542+x=542

Question

X-(-8)=13
x-57=-493
-542+x=542

Answer 1

Х - (- 8) = 13
х + 8 = 13
х = 13 - 8
х = 5

х - 57 = - 493
х = - 493 + 57
х = -436

- 542 + х = 542
х = 542 + 542
х  = 1084