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x+15−2x−12=x10

DAU COROANA!

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?