Question

if a=21 and b=18 then -(a)+(b)=​

Answer 1

Answer:

see the attachment

thanks

Answer 2

$\huge\bf{Question:-}$

Verify a-(-b)=a+b if a=21 and b=18

$\huge\bf{Solution:-}$

$a=21 \: and \: b=18 \\ </p><p></p><p>LHS : \\ </p><p>=a-(-b) \\ </p><p>=21-(-18) \\ </p><p>=21+18 \\ </p><p>=39 \\ </p><p></p><p>RHS : \\ </p><p>=a+b \\ </p><p>=21+18 \\ </p><p>=39 \\ </p><p></p><p>LHS=RHS \\ </p><p></p><p>HENCE, VERIFIED.</p><p>$