Question

In the figure below, angle GAF is as twice as the angle DAG. Find x.

Answer 1

I really don't want just and answer, i'd like it if someone could walk me through it please?

Answer 2

35 • 2 = 70
2x + 50 = 70

You see what I did there? Since the bigger angle is twice as big, it's 35 doubled, therefore making it 70 so we can now solve. Got that? :3

Answer 3

that's what i was assuming i'd do first, so then i could just subtract the 50 from both side and divide by the 2 and get my answer?o:

Answer 4

Yes!! :D

Answer 5

The 2 on the left is pretty much canceling out the doubling from the 35, so just subtract 50 from 35 and that's your answer. :3

Answer 6

wait wait so i got x=10 when i subtracted the 50 from the 70 and originally it was 20 but when divided by 2 i got 10,
but im slightly confused about the second thing you had said above

Answer 7

See, we have to use PEDMAS, so we need to divide first.

Answer 8

Parenthesis
Exponent
Division
Multiplication (for dividing and multiplying, it's whichever comes first)
Add
Subtract (add or subtract, whichever comes first like divide and multiply)

Answer 9

So first divide 70/2, and then subtract 50 from the quotient.

Answer 10

but subtracting 50 from 35 would give me a -15?

Answer 11

Hmm, then I guess it is 10. :/

Answer 12

Not sure why that happens, but I guess 10 would be your best answer. o:

Answer 13

Let's try plugging it in.

Answer 14

2(10) + 50 = 70
20 + 50 = 70
70 = 70

2(-15) + 50 = 70
-30 + 50 = 70
20 = 70

Answer 15

Heh, I guess it is 10. :)

Good thing to do is always plug it in just to make sure. :P

Answer 16

I have to go now, good luck on whatever work you are doing. ;P

Answer 17

alrighty well thanks for all your help! ^ ^"