Combine like terms.
Since 7x and 6x both have a variable of x, you can combine them.
After that, you are left with:
You also have two numbers without variables; 11 and 3. You can also combine those.
So, your final answer would be:
The general equation of an arithmetic series is 
<em>Hope this helps! :) from peachimin</em>
As for this, we have to take in the given equivalents and work with them to get the commission for selling each suit and each pair of shoes.
Let us put first that each suit is represented with a and for each pair of shoes, we represent them with b.
The given equations would be these:
47 = 3a + b
107 = 7a + 2b
Now we use the first equation to use for substitution purposes. We would first determine b in the process. To find b, we would be utilizing the equation
b = 47 - 3a
We then move to substitution.
107 = 7a + 2b
107 = 7a + 2(47 - 3a)
107 = 7a + 94 - 6a
107 - 94 = 7a -6a
13 = a
now that we have the value for a, we then use it to find b.
b = 47 - 3a
b = 47 - 3(13)
b = 47 - 39
b = 8
So the answer would be 13 for each suit and 8 for a pair of shoes.
Can you be more specific.
14=2x +6
14-6=2x+<u>6-6</u>
8=2x
x=<u>2</u>
<u> </u><u> </u><u> </u><u> </u>8
x=4
