13-4x=1-x
13=4x+x=1-x+x
13-3x=1
13-1-3x=1-1
12-3x=0
12=3x
12/3=3x/3
4=x
Therefore, x=4
The equation (form) is: 
The solution of the equation is: 
Explanation:
First, let's call the number we are going to solve for "x".
Then two thirds of this number can be written as:

Then "plus 4" means add 4 we get:

"is 7" means that the above expression is equal to 7 (as follows):

The solution of the above equation is:

$26,950.95 would be the answer.........
Answer: She went
times during the summer.
Step-by-step explanation:
If Louisa's savings change by
each time she goes bowling and it went to
, that means that Louisa went another
times.

So therefore your answer would be 11.