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stepan [7]
3 years ago
10

PLEASE HELP!! Will mark brainliest, i’m struggling. Please find PR.

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

PR = 15

Step-by-step explanation:

            PR = PQ + QR

   10x - 45 = 3 + x + 6  {Combine like terms}

   10x - 45 = 9 + x             {Subtract 'x' from both sides}

10x - x - 45 = 9

      9x - 45 = 9                  {Add 45 to both sides}

             9x  = 9 +45

             9x = 54

               x = 54/9

x = 6

PR = 10x - 45

     = 10*6 - 45

     = 60 - 45

PR = 15

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