PLEASEEE HELP!! Given that line 1 is parallel to line 2, what's the value of X

30⁰

Step-by-step explanation:

The two angles are equal since the lines are parallel, so you set the two equations equal to each other and solve.

2x+20 = 3x-10

subtract 2x from both sides

20 = x-10

add 10 to both sides

30 = x

check your answer but plugging 30 into the original equations, and you get 80⁰ for both.

answer: huh

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.