Question

Resolva a equação 3,2+1,5(3x-4,2)=0,8(x-4)

Answer 1

Resposta:

$3.2 + 1.5(3x - 4.2) = 0.8(x - 4) \\ 3.2 + 4.5x - 6.3 = 0.8x - 3.2 \\ 4.5x - 0.8x = - 3.2 - 3.2 + 6.3 \\ 3.7x = - 6.4 + 6.3 \\ 3.7x = - 0.1 \\ x = \frac{ - 0.1}{3.7} \\ x = - \frac{1}{37}$