Isolate the z. Note the equal sign. Subtract 1/7z to both sides
1/7z (-1/7z) + 2 = -6/7z (-1/7z)
2 = -6/7z - 1/7z
Simplify. Combine like terms
2 = -7/7z
2 = -1z
Isolate the z. Divide -1 from both sides
(2)/-1 = (-1z)/-1
z = 2/-1
z = -2
-2 is your answer
hope this helps
55t+285t=1020 combine like terms on left side
340t=1020 divide both sides by 340
t=3 hours
However that t is for the amount of time spent on the train and the same amount of time spend on the plane. So the total time for the trip is 2 times t, which is:
6 hours.
Answer: 14
Step-by-step explanation:
Answer:
8 yards
Step-by-step explanation:
first make the fraction improper so 20/9 times 18/5 equals 8
