Solve: -3r + 8 + 2r = -1
What does r equal?
R =

x/7.50 = 15

x= 7.50 / 15 divide

x = 2

step-by-step explanation:

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“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

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