Answer:
x = 2.6
7x+1
Step-by-step explanation:
<u>If 4.75x = 12.35, what is the value of x?</u>
You need to solve this equation. To do so, we need to isolate the x variable by itself. So, we will divide both sides by 4.75 to get our answer for x.
![4.75x = 12.35\\\frac{4.75x}{4.75} = \frac{12.35}{4.75}\\x= 2.6](https://tex.z-dn.net/?f=4.75x%20%3D%2012.35%5C%5C%5Cfrac%7B4.75x%7D%7B4.75%7D%20%3D%20%5Cfrac%7B12.35%7D%7B4.75%7D%5C%5Cx%3D%202.6)
x = 2.6
<u>What is 3x+2+4x-1 after combining like terms?</u>
To combine like terms, it means to simplify/merge them together. We know what 1 +2 is? Why write 1 +2, when we can just say 3? That's basically what the question is asking.
Anyway,
![3x+2+4x-1\\](https://tex.z-dn.net/?f=3x%2B2%2B4x-1%5C%5C)
Merge the x's (DON'T SEPERATE THE X IF ITS BESIDE A NUMBER!!! IT WILL BE MULTIPLIED BY X)
![7x+2-1](https://tex.z-dn.net/?f=7x%2B2-1)
Now simply 2-1.
![7x+1](https://tex.z-dn.net/?f=7x%2B1)
Simplified version: 7x+1