Question

resolva as seguintes eguacoes ×+4. (×-1)=9-2.(×+3)

Answer 1

Resolva as seguintes eguacoes
×+4. (×-1)=9-2.(×+3)
x + 4x - 4 = 9 - 2x - 6
   5x    - 4 = - 2x - 6 + 9
5x - 4 = - 2x + 3
5x - 4 + 2x = 3
5x + 2x = 3 + 4
7x = 7
x = 7/7
x = 1