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If R is the midpoint of ST, SR = 3x + 8, and RT = 5x - 6, find the measure of SR.
Since R is the midpoint, both sides will be equal so you would set the equations equal to each-other and solve like this 3x+8= 5x-6 +6. +6 3x + 14 =5x -3x. -3x 14= 2x. You would then simply x by diving both sides by two to get x=7. Plugging that into the equation of SR ( that is what we are trying to find) your answer is 29. ( SR= 3(7) +8 SR = 21+8 SR= 29 ) Hope this helps!
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