Evaluate 4(a – 3b) when a = –4 and b = 6.
$${\mathtt{4}}{\mathtt{\,\times\,}}\left({\mathtt{\,-\,}}\left({\mathtt{4}}\right){\mathtt{\,-\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{6}}\right) = -{\mathtt{88}}$$