Question

Geometry, help with the last 3 questions!

Answer 1

Answer:

5) 7

6) 14

7) 31

Step-by-step explanation:

5) 5a-4=2a+17

3a=21

a=7

6) 2(7)=14

7) 2(7)+17=31

Answer 2

4. C

5. 2a + 17 = 5a - 4

- 3a = - 21

a = 7

6. XY = 2(7) = 14

7. XZ = 5(7) - 4

= 31