Which of the following equations have exactly one solution? Choose all answers that apply:
A
-5x + 12 = 5x + 12
B
--5x + 12 = 5x – 5
-5x + 12 = - 12x – 12
-50 + 12 = -57 - 12
YO
Ple
Try

it has changed from the width and the height.

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.

here is a big fat