2x + 2y = 16

6x + 4y =38

what is the value of x ?

a. x=1/3

b. x=-1

c. x=13

d. x=3

So to do this, we can find out the difference between the two equations, or subtract all the components from each other, so we can get a shared variable to see the difference of the other variable, if that makes any sense.

So just subtract the different components from each other.

6x - 2x + 4y - 2y = 38 - 16
= 4x + 2y = 22

And since 2y is shared with the first equation, 2x + 2y = 16, we can find out how much x changes things.

Since 22 is 6 away from 16, and only 2x was added, we can now say 2x = 6, or x = 3.

I hope I helped! :)

If you triple 2 you get: 3(answer)

6 + 1 1/2 gets you: 7 1/2 or 7.5

Step-by-step explanation:

Tripling 2 just means that you multiply 2 by 3 which gets you 6.

The next question with 6 and 1 1/2 just wants you to combine the fraction. This can be done by putting a 1 under the 6 such as: 6/1(there's always a one under a number) then, you turn the mixed fraction into a improper fraction. 1 1/2 is now 3/2 now you add. Before adding, you need to get common denominators for both fractions which would be 2. Now we add 12/2 + 3/2 which we then get 15/2 = 7 1/2 or 7.5. Hope this helps!