171k views
3 votes
If the perimeter of this figure is 78 cm, what is the value of x?

If the perimeter of this figure is 78 cm, what is the value of x?-example-1
User Shuang
by
4.5k points

1 Answer

2 votes
Answer: x=12

1st step: (2x – 3) + (2x –3) = 4x – 6

2nd step: 4x –6 + (12) = 4x + 6

3rd step: 4x + 6 + (2x) = 6x + 6

4th step: 6x + 6 = 78
–6 –6

5th step: 6x /6 = 72/6

6th step: x = 12



User Alex McKenzie
by
5.0k points