Solve for x

7+3 = 7x-2x

10 = 5x

———-

5

2 = x

Reasoning: Because N is the midpoint, (so the exact middle) MN = one half, and NO = the other half. Thus MN=NO. That is how you retrieve x

To get the other half of the question, simply plug in your value of x

5X=10

X=2

Thus the line MN is equal to 2*2+7 or 11

2x(-2x)+7(+3)=7x(-2x)-3(+3)

7+3=7x-2x

10=5x

x=2

MN=2x+7=2(2)+7=11

10=5x

2=x

x=2

MN=(2×2)+7

MN=4+7

MN=11

Reason: Dude, just use reasoning to see why it is what it is…I gave you the formula, so you should be able to get the explanation! Ya know, human beings are so much better than animals because we have the ability to reason and think, so harness your anatomy -_-