Question

If 13 years ago

Answer 1

DO I have to draw that?

Answer 2

So we can see that ABD is half of ABC

ABD = (1/2)*ABC

2x+1 = (1/2)*(6x-22)

2x+1 = (1/2)*(6x)-(1/2)*22

2x+1 = 3x - 11

Keep going to solve for x

Answer 3

no, but it helps if you don't see that ABD = (1/2)*ABC

Answer 4

how do I solve for x?

Answer 5

you have to isolate x, so you need move all the x terms to one side

everything else gets moved to the other

Answer 6

so the 3x needs to get moved to the left

the +1 on the left side needs to move to the right side

Answer 7

sso its -10?

Answer 8

-11-1?

Answer 9

not quite, you subtract 1 from both sides

-11 - 1 = -12

so it's -12 on the right side

Answer 10

on the left side, you go from 2x to

2x - 3x

-1x

-x

So the left side becomes -x

---------------------------------------

We therefore go from

2x+1 = 3x - 11

to

-x = -12

Answer 11

then what?

Answer 12

-x = -12

so

x = ???

Answer 13

-12?

Answer 14

no that's negative x

negative x = negative 12

positive x = ???

Answer 15

12?

Answer 16

yep

Answer 17

thanks(:

Answer 18

np