Question

Resolva as equações do 1° grau:

a)5×-3=-3 (x -1) + 2x

b) 3x- 1= 8​

Answer 1

5x - 3= - 3(x - 1) + 2x

5x - 3= - 3x + 3 + 2x

5x + 3x - 2x= 3 + 3

6x= 6

x= 6/6

x= 1

___________________

3x - 1= 8

3x= 8 + 1

3x= 9

x= 9/3

x= 3