By moving the signs he actually changed the number itself. He changed -6 from a negative to a positive and 5 from a positive to a negative. Both equations give different answers.
Hopefully this helps :)
Answer:
17a + 16 =
Step-by-step explanation:
Add all a's
then all numbers w/o letters
you cannot add them together bc it would be like adding apples to carrots (thats what my teacher said)
Answer: 500 g of candy in each bowl
Step-by-step explanation:
1,000 g = 1Kg
4,500 g - 1,000 g = 3,500 g of candy were divided over 7 bowls:
Each bowl contains = 3,500 g➗7 bowls = 500 g candy/bowl
Answer: 500 g of candy in each bowl
<h2><em>Spymore</em></h2>
Answer:
x=2
x=-5
Step-by-step explanation:
You need to get everything on one side to have a quadratic equation:
x^2+6x-4 -(3x+6) = x^2+3x-10
All factors of 10 are 1*10 and 2*5.
5-2 = 3 and 5*-2 = -10
Factoring x^2+3x-10 gives us (x-2)(x+5)
x=2
x=-5
