Question

AB and BC are tangent to circle D. Find x if AB=3x+2 and BC=x+12. Find x.

Answer 1

From any point outside a circle, only two, equally long tangent lines can be drawn to a circle.

Answer 2

So set the two lengths as equal and solve for x from there

Answer 3

3x+2=x+12 ?

Answer 4

Yep

Answer 5

ok..

Answer 6

add 3x?

Answer 7

You can't add 3x. Your goal to solve for x is to isolate it. To do so, move the term with a variable to one side and the constant to the other. To do so, subtract both sides by x then subtract both sides by 2 and simplify from there to get x completely on it's own.

Answer 8

3x+2=x+12
3x-x+2-2=x-x+12-2
2x=10
x=__

Answer 9

What you do on one side of an equation, you must do on teh other side to keep the equation the as having teh same value. By doing so, you alter the form of teh equation while keeping teh meaning.

Answer 10

5?

Answer 11

Yeah

Answer 12

thank you!! :)

Answer 13

Your welcome