Answer:
3
Step-by-step explanation:
Square: 4 equal sides
If x is one of the sides:
Perimeter: 4x
12: 4x
x=3
Add 8 on both sides of the equation.
x = -12
There’s your answer!
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Answer: m <PQR =600. 3x = 5X-20. -2x =- 20.
Step-by-step explanation: