Question

-5x+45-89=-90+41 resposta para o 1grau

Answer 1

-5x+45-89=-90+41
-5x=-90+41+89-45
-5x=-49+44
-5x=-5.(-1)
5x=5
x=5/5
x=1

Answer 2

- 5x + 45 - 89 = - 90 + 41
- 5x = - 90 + 41 + 89 - 45
- 5x = - 5  (-1)
5x = 5
x = 5/5
x = 1