Respuesta :

824465bm

Answer:

x=30

Step-by-step explanation:

180=40+(4x+20)        180-40

140=4x+20              140-20

120=4x                 120/4

30=x

smantha81
X=30
Step-by-step explanation:
The two angles are supplementary. They add to 180
4x+20 + 40 =180
Combine like terms
4x+60 =180
Subtract 60 from each side
4x+60 =180-60
4x =120
Divide each side by 4
4x/4 = 120/4
x=30
(Have a great day get good grades)

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