Answer:
X=-5
Step-by-step explanation:
Since anything divided by one is still that number, then (x-7)/1 becomes x-7. So our equation now looks like:
(X-19)/2=(x-7).
Multiplying both sides by 2, we get
X-19=2x-14
Adding 19 to both sides:
X=2x+5
Subtract 2x from both sides:
-x=5
Multiplying both sides by -1, we get:
X=-5
Answer:
150 steps
Step-by-step explanation:
GOING UP:
Steps taken per second = speed = 3steps/s
Let Time taken = y
Number of steps = steps taken per second × time taken
Number of steps = 3 × y - - - - (1)
COMING DOWN:
Steps taken per second = 2steps/s
Total time taken = y + 25
Number of steps = 2 × (y + 25)
Number of steps = 2y + 50 - - - - - (2)
Equating (1) and (2)
3y = 2y + 50
3y - 2y = 50
y = 50
Substitute y = 50 into either (1) or (2)
Put y= 50 into (1)
Number of steps = 3y
Number of steps = 3(50)
Number of steps = 150
Answer:
Step-by-step explanation:
2y=11-3
2y=8
Y=8/2
Y=4
Answer Z=2
The math …..
Multiple ( ) first
15z -21 -18z +22 = 32z - 52 -17
Combine like terms
-3z + 1 = 32z -69
Move like terms to isolate Z
-35z = -70 two negative make positive
35z = 70
Divide both sides by 35 to isolate Z
Z = 2
Answer:
I think the answer is the third one
Step-by-step explanation:
