Question

Which is not a solution to the equation x-2y=10 ?

A.
(–6, –8)

B.
(–3, 4)

C.
(8, –1)

D.
(14, 2)

Answer 1

@YoungStudier

Answer 2

Ok, let's do what we did with the last one.
Plug each answer choice into the equation :)

Answer 3

ok ill start w/ A. (-6)-2(-8)=10. -6-2 is -8 *-8 is 64 so nope

Answer 4

Wait, hold up.
Follow the order of operations.
x - 2y = 10
-6 - 2(-8) = 10
Multiply first
Then subtract, ok? :)

Answer 5

ok..sorry for long time w/ out reply

Answer 6

It's alright. :)

Answer 7

im stuck :/

Answer 8

Ok :)
So the equation currently is: -6 - 2(-8) = 10
First, we wanna multiply 2 and -8
Next, we wanna subtract whatever 2 and -8 is from -6
If the ending result of the equation is 10, it's not the answer since we're looking for the choice that is NOT a solution to the equation.

Answer 9

oh ok so 2*-8 is -16...

Answer 10

and -6 - -16 is -22

Answer 11

right?

Answer 12

o.o Nope
-6 - (-16) is the same as -6 + 16
That would equal: ?

Answer 13

-10 oh lol my bad

Answer 14

Positive 10 ;P
Anyways, plug B in next. :)

Answer 15

10 dang im bad with math

Answer 16

Ok, so let's plug B in next:
x - 2y = 10
-3 - 2*4 = 10
? = 10

Answer 17

-3-2(4)=-11

Answer 18

Correct.
Do you think that's our answer?

Answer 19

ya

Answer 20

Yeppers. ^.^
So B is our answer. :)

Answer 21

k thanks!:)

Answer 22

No problem! ^_^