Question

evaluate the expression 3 x when x equals negative 9​

Answer 1

3x when x=-9 would be 3(-9) or -27

Answer 2

$given \: that \: :$

$x \: = - 9$

$then \: 3x \: will \: be :$

$3 \times x$

$3 \times - 9$

$= - 27$

$∴3x = - 27 \: ( \: x \: = - 9)$