Question 29137
Your question:If a = –5 and b = 0, evaluate 2a + 3b.
--------------------------------------------------------------------------
My answer: 
First, simply plug in the -5 for the a in the equation and 0 for the b in the equation.
2a+3b-----original equation
2(-5)+3(0)------plug in the answers for the variables
-10+0------simplify
-10 is your answer!