ramells
ramells ramells
  • 10-12-2018
  • Mathematics
contestada

What is the value of the expression 3 – a – b when a = 15 and b = –3?

–21

–15

–9

21

Respuesta :

asiangirl181 asiangirl181
  • 10-12-2018

Answer:

the answer is -9

Step-by-step explanation:

3 - 15 = -12

-12 - (-3) = 9 adding two negatives gives you a positive so its really, -12 + 3

Answer Link
nwburgess6p6kox1 nwburgess6p6kox1
  • 10-12-2018

Just substitute then solve

3-15-(-3)

Answer:

-9

If it helps draw a number line

<--------------------------------------------------------------------->

 -10            -5                 0              5                   10

start at 3, then left 15 spaces, then right 3 spaces

Answer Link

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