3 years ago

What is the value of x? see attachment below

Mathematics

1 answer:

Kitty [74]3 years ago

4 0

Answer:

x = 31

Step-by-step explanation:

The perimeter is the sum of the equal-length sides:

63 = (x -10) +(x -10) +(x -10)

63 = 3x -30 . . . . . . . . collect terms

21 = x -10 . . . . . . . . . . divide by 3

31 = x . . . . . . . . . . . . . add 10

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