Answer:
x= - 3 and y= - 7
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
19 because 1 ten = 10 ones and 9 one plus 10 ones equals 19 altogether
Answer:
390
Step-by-step explanation:
3z-4=6z-17
-3z-4=-17 (subtracted the 6z from both sides)
-3z=-13 (added the 4 to both sides)
z=

(divided both sides by -3z)
z=