Question

5. (-x+2)=100 me ajudem urgetissimo

Answer 1

5.(-x + 2) = 100

===
5(-x + 2) = 100
-5x + 10 = 100
-5x = 100 - 10
-5x = 90 . (-1)
5x = -90
x = -90/5
x = -18

Answer 2

5.(-x+2)=100
-5x + 10 = 100 (aplicas-se modulo)
5x - 10 = -100
5x = -100 +10
5x = -90
x = -90/5
x = -18