How do you evaluate the following algebraic expression at b=-1 and simplify your answer #-3(b-1)-4(b-3)#?
1 Answer
Feb 18, 2017
Explanation:
#"Substitute "b=-1" into the expression"#
#rArr-3(color(red)(-1)-1)-4(color(red)(-1)-3)#
#=(-3xx-2)+(-4xx-4)#
#=6+16#
#=22#
