How many solution does this linear system have 2x-y=7 y=2x+3

NO SOLUTION

Step-by-step explanation:

We can make this problem easier to understand if we write the system vertically:

2x-y=7

y=2x+3

and then rewrite the first problem in the form y = mx + b:

2x-y=7   ↔    y + 7 = 2x   ↔  y = 2x + 7

y=2x+3

Note how these two equations have the same slope, but different y-intercepts.  This tells us that the two lines are parallel, which in turn tells us that they never intercept one another.

Thus, this system has NO SOLUTION.

entering that problem on the tube might get you an answer