Answer:
d. 6
Step-by-step explanation:
a simple way to do away with denominators, is we can simply multiply both sides by the LCD, in this case the LCD is 3, so let's multiply both sides by 3.
![\bf 3\left( \cfrac{1}{3}x+y \right)=3(4)\implies x+3y=12\implies 3y=12-x \\\\\\ y=\cfrac{12-x}{3}\implies \stackrel{\textit{distributing the denominator}}{y=\cfrac{12}{3}-\cfrac{x}{3}}\implies y=4-\cfrac{1}{3}x](https://tex.z-dn.net/?f=%5Cbf%203%5Cleft%28%20%5Ccfrac%7B1%7D%7B3%7Dx%2By%20%5Cright%29%3D3%284%29%5Cimplies%20x%2B3y%3D12%5Cimplies%203y%3D12-x%0A%5C%5C%5C%5C%5C%5C%0Ay%3D%5Ccfrac%7B12-x%7D%7B3%7D%5Cimplies%20%5Cstackrel%7B%5Ctextit%7Bdistributing%20the%20denominator%7D%7D%7By%3D%5Ccfrac%7B12%7D%7B3%7D-%5Ccfrac%7Bx%7D%7B3%7D%7D%5Cimplies%20y%3D4-%5Ccfrac%7B1%7D%7B3%7Dx)
Answer:
m=-3
Step-by-step explanation:
m - 7 = -10
Ok so,
in order to get m by itself you just need to do the opposite of -7 which is +7 so you have to add 7 to both sides. On the left, both of the 7's cancel out and on the right -10 + 7 = -3. So, now it should look like this.
m=-3
To check you just need to plug in -3 into the question
Hope this helps! Have a good day
Sorry I don’t know the answer is just needed a point to get my question answered
Answer:
The answer is B.
Step-by-step explanation:
Given that the total angles in a triangle is 180° so in order to find the value of x, you have to substract 60° and 80° from 180° :
![60 + 80 + x = 180](https://tex.z-dn.net/?f=60%20%2B%2080%20%2B%20x%20%3D%20180)
![140 + x = 180](https://tex.z-dn.net/?f=140%20%2B%20x%20%3D%20180)
![x = 180 - 140](https://tex.z-dn.net/?f=x%20%3D%20180%20-%20140)
![x = 40](https://tex.z-dn.net/?f=x%20%3D%2040)