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scZoUnD [109]
3 years ago
13

Solve for x. please i need know

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0

Answer:

x = 18

Step-by-step explanation:

Vertically opposite angles are equal.

x + x + x + 90 = 144

         3x + 90 = 144  

Subtract  90 from both sides

                 3x = 144 - 90

                 3x = 54

Divide both sides by 3

                   x = 54/3

x = 18

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