<span>3 + ((-5) + 6) = (3 + (-5)) + 6
It's </span>associative property of addition
The associative property of addition states that you can add regardless of how the numbers are grouped, result will state the same.
Answer:
0=0+x-x
Step-by-step explanation:
for example... plug in any number for x
0=0+5-5
Answer: x=7
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−(12+4x)=−40
−4x+−12=−40(Distribute)
−4x−12=−40
Step 2: Add 12 to both sides.
−4x−12+12=−40+12
−4x=−28
Step 3: Divide both sides by -4.
−4x
−4
=
−28
−4
Answer:
1140 ways.
Step-by-step explanation:
The applicable formula is: (n +r - 1)C(r-1), where n is the number of identical items (the candies), and r is the possible number of recipients (the kids).
The 17 identical candies, can be distributed among the 4 children in :
=(17 + 4 - 1)C(4–1) = 20C3 ways.
= 20!/((20–3)!*3!) ways.
= 20*19*18*17!/(17!*(3*2*1)) = 20*19*18/6 ways
= 20*19*3 ways.
=1140 ways.
