Answer:
-30 is a debt of 30$
+30 is 30 meters above sea level
+6 is 6 units to the right of 0 on the number line
-15 is 15 meters below sea level
+15 is a profit of 15$
Step-by-step explanation:
above sea level means positive(+)
below sea level means negative(-)
profit means you gained (+)
debt means to take(-)
Answer:
If they have the same variable you add or subtract them.
Step-by-step explanation:
Answer:
6x−11y+15
Step-by-step explanation:
Distribute the Negative Sign:
=5x−6y+7+−1(−x+5y−8)
=5x+−6y+7+−1(−x)+−1(5y)+(−1)(−8)
=5x+−6y+7+x+−5y+8
Combine Like Terms:
=5x+−6y+7+x+−5y+8
=(5x+x)+(−6y+−5y)+(7+8)
=6x+−11y+15
Answer:
6x−11y+15
I hope I helped!!
Answer:
If Sam incorrectly answered 5 questions, and for each question 3 points were deducted, a total of 5x3, or 15 points were deducted.
Sam scored an 85.
Let me know if this helps!
So to find the answer you want to isolate the y. So the first thing you want to do is to move everything to the opposite side of the = sign. You start by adding 10 to both sides.
10+ 5y -10 = -25 +10
5y = -15.
the tens cancel out on the left side and on the right you get left with -15/
Since y is being multiplied by 5 you always want to do the opposite so you divide by 5.
5y/5 = -15/5
y = -3
It's hard to explain but you just have to remember that what you do to one side you must do to the other to keep the equation balanced.