Answer:
x=-5
Step-by-step explanation:
10x + 15 = 5x-10
-5x -5x
5x+15 = -10
-15 -15
5x = -25
/5 /5
x = -5
Answer:
I think it's B
Step-by-step explanation:
3 + (-7)
= 3 - 7
it's 3 - 7 because the positive and negative cancel each other out. A good example to think of intergers is with money, ex: If I borrow $7 from you and the next day I pay back $3, how much money do I still owe you?
(I'm not 100% sure)
Answer:
10-7=3 so the difference is -3
Answer:
Let Tom's cards = x
Equation:
Neils Cards = x + 83 (Neil has 83 more cards)
x + 83 = 517 (Tom has 83 cards less than Neil)
x = 434