-2x+3 - (5 - 6x)
pretend that there is a -1 in front of the bracket
mutiply the bracket by -1
(-1)(5)=-5
(-1)(-6x)= 6x
-2x+3-5+6x
-2x+6x+3-5 ( combine like terms)
Answer: 4x-2
The greatest counting number that divides 17, 25 and 41 and leaves the same remainder in each case is 8
y = k/x, where k is the variation constant.
We need to find k.
5 = k/15...This equation leads to the correct value of k (our variation constant).
5(15) = (k/15)(15)
75 = k
Done!
Answer:the number of BlackBerry that Arlene had initially was 276
Step-by-step explanation:
Let x represent the number of BlackBerry that Arlene had initially.
She gave 216 to her teachers. This means that she is left with x - 216
Then she dropped 12. This means that she would be left with x - 216 - 12 = x - 228
Later, she ate 18. This means that she would be left with x - 228 - 18 = x - 246
Finally, she gave half of what she had to her friend. This means that the amount that she gave to her friend is (x - 246)/2 and the amount that she has left would be
(x - 246)/2
Now, she has 15. This means that
(x - 246)/2 = 15
x - 246 = 2 × 15 = 30
x = 30 + 246 = 276
