Question

5 (× - 3 ) - 4 ( × + 2) = 2 + 3 ( 1 - 2× )=
Valendo 10 pontos

Answer 1

5 (× - 3 ) - 4( × + 2) = 2 + 3(1 - 2× )
5x - 15 - 4x - 8 = 2 + 3 - 6x
x - 23 = 5 - 6x
x + 6x = 5 + 23
7x = 28
x = 28/7
x = 4

Answer 2

5 (× - 3 ) - 4 ( × + 2) = 2 + 3 ( 1 - 2× ) 5x - 15 - 4x - 8 = 2 + 3 - 6x 5x - 4x + 6x = 2 + 3 + 15 + 8 x + 6x = 5 + 23 7x = 28 x = 28/7 x = 4