# What is the value of 2a-3b+6 when a=2 and b=-5?

Nov 19, 2016

answer is $25$
$2 \setminus \textcolor{red}{a} - 3 \setminus \textcolor{b l u e}{b} + 6$ when $\setminus \textcolor{red}{a = 2}$ and $\setminus \textcolor{b l u e}{b = - 5}$
$2 \left(\setminus \textcolor{red}{2}\right) - 3 \left(\setminus \textcolor{b l u e}{- 5}\right) + 6$
$= 4 - \left(- 15\right) + 6$
$= 19 + 6$
$= 25$