Question

Can someone please help me with the problems below?

Thanks in advance!

Answer 1

11. 10

12. 7

13. 17

14. 18

Explanation:

* For each of these problems you must place the two segments given equal to the total length given

11.

`9+11x-1=20x-1\\11x+8=20x-1\\8=9x-1\\9=9x\\x=1\\RS=11(1)-1=10`

12.

`15+x+x+16=15\\2x+31\\2x=-16\\x=-8\\LM=15-8=7`

13.

`x-7+12=-7+2x\\x+5=-7+2x\\5=-7+x\\x=12\\UW=12-7+12=17`

14.

`3+4x+7=10x-2\\4x+10=10x-2\\10=6x-2\\12=6x\\x=2\\JL=3+4(2)+7=18`