Solve for x: 5|2x-2|+8=18
A.) x=2,x=-2
B)x=-2,x=0
C)x=2,x=0
D)x=0,x=1/2

12cm

the answer is d

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.

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: