Question

Evaluate the expression - 4a - 5b - 9 for a = 3 b = -2

Answer 1

- 4a - 5b - 9
\[\huge~\rm~\bf- 4(3) - 5(-2) - 9 \]

Answer 2

-4*3=?

Answer 3

-31?

Answer 4

-4 times 3=?

Answer 5

-12

Answer 6

Good now we have
\[\huge~\rm~\bf~−12−(5)(−2)−9\]
-5 times -2=?

Answer 7

10

Answer 8

Good
\[\huge~\rm~\bf~−12−(−10)−9 \]
When we have 2 negative signs together they become a postitive
\[\huge~\rm~\bf~−12+10−9 \]
-12+10=?

Answer 9

-2

Answer 10

Good
−2−9=?

Answer 11

sorry -11

Answer 12

Perfect :)

Answer 13

Thank you pooja195