15+2w = 5w+5 solve for w

10/3

Step-by-step explanation:

15+2w=5w+5

15=5w-2w+5

15=3w+5

3w=15-5

3w=10

w=10/3

10/3=w

Step-by-step explanation:

15+2w = 5w+5

15=3w+5

10=3w

10/3=w

did you get the answer yet?

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.