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Can someone put a website to help me understand this?
Im sure its not hard I just don't know how to do it


Can Someone Put A Website To Help Me Understand This Im Sure Its Not Hard I Just Dont Know How To Do It class=

Sagot :

Answer:

67

Step-by-step explanation:

Since the diagonals in a rectangle are congruent, AC=BD and

7x+18=10x-3

We need to separate x -- to do that, we can first subtract 7x from both sides, resulting in

18=3x-3

Next, add 3 to both sides to get

21=3x

Divide both sides by 3 to get

x=7

Then, we just plug x into 10x-3 to get BD = 7*10-3 = 67