Combine the like terms. 3x plus 2-x-4. plzz i will give you 100 ponts

Hello!

2x-2

*The answer must have a positive sign.*

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you use group like terms.

←(*Group like terms*)

Then, you add by the similar to elements.

And finally, you add/subtract by the numbers from left too right.

Final →

Hope this helps!

Thanks!

-Charlie

Have a great day!

:)

:D

y -5 = (-1/4)(x + 8)

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.