Question

b) 2 ( 2x – 3x ) = 4 ( - 3 + 4 ) resolva as equações ​

Answer 1

Resposta:

$2(2x - 3x) = 4( - 3 + 4) \\ 4x - 6x = - 12 + 16 \\ - 2x = + 4 \\ - x = 4 \div 2 \\ - x = 2 \: \: \: \: \times ( - 1) \\ x = - 2$