Answer:
Step-by-step explanation:
x=500
7/10=350/x
cross-multiply by multiplying 350 to 10 and multiply 7 to x.
example:
7•x
350•10
7x=3500
divide both sides by 7
-------------
-9
5
0
-8
well those are the answers
The answer to this problem is 3(2x+1)