Question

The value of $a$, if $-18\times \left[\right(-7)+4]=(-18)\times a+(-18)\times 4$ is

• A. $(-7)$
• B. $4$
• C. $-18$
• D. $7$

Answer 1

The correct option is A $(-7)$

$a\times (b+c)=(a\times b)+(a\times c)$

is the distributive property over addition for integers.
$\therefore -18\times \left[\right(-7)+4]=(-18)\times (-7)+(-18)\times 4$.