2 years ago

Calculate the value of x

Mathematics

2 answers:

kati45 [8]2 years ago

7 0

Answer:

55°

Step-by-step explanation:

since angles in a straight line add up to 180°

x+2x+15=180°

3x+15=180°

3x=180-15

3x=165

divide by 3 on both sides

x=55°

vivado [14]2 years ago

6 0

Answer:

x = 55

Step-by-step explanation:

x + (2x+15) = 180

3x + 15 = 180

3x = 165

x = 55

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