How do you evaluate the following algebraic expression at b=-1 and simplify your answer $-3(b-1)-4(b-3)$ ?

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Answer 1 · 2017-02-18T12:03:19

$22$

$"Substitute "b=-1" into the expression"$

$rArr-3(color(red)(-1)-1)-4(color(red)(-1)-3)$

$=(-3xx-2)+(-4xx-4)$

$=6+16$

$=22$

How do you evaluate the following algebraic expression at b=-1 and simplify your answer -3(b-1)-4(b-3)-3(b-1)-4(b-3)?