Respuesta :

iciclepiano18

Answer:

x=35

Step-by-step explanation:

These two angles are supplementary (or a linear pair) meaning that they add up to 180°.

We can use this information to set up an equation:

3x+75=180

Subtract 75 from both sides

3x=105

Divide both sides by 3

x=35
it adds up to 180 on either side, 180-75=105 therefor x=105

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