Answer:
6.
Step-by-step explanation:
2.3 repeating = 2 1/3
So 3 2/3 + 2 1/3
= 5 + 1
= 6.
Answer:
2+8, 3+5
Step-by-step explanation:
Answer:
x = -5 ; y= -1
Step-by-step explanation:
10y = -10
y = -1
-8x = 44 -4
-8x = 40
x = -5
Answer:
![\huge\boxed{-28}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7B-28%7D)
Step-by-step explanation:
We can substitute the given values of
,
, and
to find the value of this expression.
![-4 | a + b - c|](https://tex.z-dn.net/?f=-4%20%7C%20a%20%2B%20b%20-%20c%7C)
![-4 | 3 + (-2) - (-6)|](https://tex.z-dn.net/?f=-4%20%7C%203%20%2B%20%28-2%29%20-%20%28-6%29%7C)
We know that <em>two negatives make a positive. </em>This means that
will be the same this as ![-2+6](https://tex.z-dn.net/?f=-2%2B6)
![-4 | 3 + -2 + 6|](https://tex.z-dn.net/?f=-4%20%7C%203%20%2B%20-2%20%2B%206%7C)
Adding a negative is the same as subtracting a positive.
![\4 | 3-2+6|\\\\3-2+6 = 7](https://tex.z-dn.net/?f=%5C4%20%7C%203-2%2B6%7C%5C%5C%5C%5C3-2%2B6%20%3D%207)
![-4 \cdot 7 = -28](https://tex.z-dn.net/?f=-4%20%5Ccdot%207%20%3D%20-28)
Hope this helped!
Answer: The letter x is often used in algebra to mean a value that is not yet known. it is called a variable or somethings an unknown in x + 2 = 7, x is a variable but we can work out its value if you try a variable does not have to be x though it could be y or w, or any letter, name or symbol. See: variable
Step-by-step explanation: and that's it! have a yummy cookie day! ◑﹏◐