∠1 and ∠2 are supplementary.

∠1=3x°∠2=(2x−25)°

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what is the value of x?

Angles 1 and 2 have to equal 180° since they are supplementary.
So you put 3x+2x-25=180, you then add like terms. 5x-25=180 Then you have to isolate x, so you add 25 to both sides of the equation. 5x=205, then you divide both sides by 5. So your answer is x=41.

You can check to make sure by plugging in x for 41 .

Hope this helps!

Ithink the versus years?