Evaluate the expression \[6a – 3x – 2y\] if \[a = –3, x = –7\], and \[y = 4\].
Replace the unknowns with the numbers given:
\[6(–3) – 3(–7) – 2(4)\]
= \[ –18 + 21 – 8\]
= \[\ –5\]