Question

How do I solve for x?

Answer 1

Do you have more info? Is it a square?

Answer 2

The only other info I have is the answer options.
A. x = -4
B. x = 1
C. x = -1
D. x = 4

Answer 3

I assumed it's a square and solved it. I'll give you a hint. What do you know about the sides of the square?

Answer 4

They are all the same.

Answer 5

So what can you say about the two formulas that represents the sides?

Answer 6

Uh.. they'd have to work out to be the same?

Answer 7

If you know that BC = DC it means that 3x+7=5x-1

Answer 8

Okay i just worked it out thank you :)