Question

1)- determine o valor da equação
2(x+9)=-6(-1x)

Answer 1

$1)2(x + 9) = - 6( - 1x) \\ 2x + 18 = 6x \\ 2x - 6x = 18 \\ - 4x = 18 ( - 1) \\ 4x = - 18 \\ x = \frac{ - 18 \div 2}{4 \div 2} \\ x = \frac{ - 9}{2}$