Sagot :
Answer:
- a number decreased by eight
- a number decreased by fourteen
- a number increased by a number increased by a number multiplied by three is eighteen
Answer:
3 (x + y + z) = 18
Divide both of the side by 3
x + y + z = 6
Subtract y+z from both sides
x+y+z - (y+z)= 6 - (y+z)
Answer
x=6-y-z