Respuesta :

fieryanswererft

Answer:

x = 25°

Step-by-step explanation:

Here given a straight line whose angle equals to 180°

2x + 10 + 4x + 20 = 180

group terms like this ↓

2x + 4x + 10 + 20 = 180

simplify all variables ↓

6x + 30 = 180

changing sides changes addition to subtraction ↓

6x = 180 - 30

6x = 150

changing sides changes multiplication to division ↓

x = 150/6

final answer ↓

x = 25°

semsee45

Answer:

x = 25

Step-by-step explanation:

Angles on a straight line add up to 180°

[tex]\implies (2x + 10) + (4x + 20) = 180[/tex]

[tex]\implies 2x + 10 + 4x + 20 = 180[/tex]

[tex]\implies 6x + 30 = 180[/tex]

[tex]\implies 6x =150[/tex]

[tex]\implies x= 25[/tex]

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