Answer: <em>u = 6</em>
Step-by-step explanation: To solve for <em>u</em> in the equation you see here, we must first isolate the term containing <em>u</em> which in this problem is -6u.
Since 7 is being added to -6u, we subtract 7 from both sides of the equation to isolate the -6u. On the left side of the equation, the +7 and -7 cancel out and on the right side of the equation, -29 - 7 is -36 so we have -6u = -36.
Now we can finish things off by just dividing both sides of the equation by -6. On the left the -6's cancel and on the right -36 divided by -6 is 6.
So u = 6 and you can check your answer by 6 back in for <em>u</em> in the original equation shown below in italics.
<em>-6 (6) + 7 = -29</em>
Answer:
x = -4, v = 2.5
x = -14, v = -2.5
Step-by-step explanation:
I am a bit confused with the beginning part of the question. From what I understand, you are trying to solve for x and then plug x into the top equation to find the value for V. I am sorry if that is not what you are looking for. If it is, look below!
x + 9 = 5
x = 5 -9
x = -4
v(x + 9)2 = 25
v(-4 + 9)2 = 25
v(5)2 = 25
v(10) = 25
v = 25/10
v = 2.5
x + 9 = -5
x = -5 -9
x = -14
v(x + 9)2 = 25
v(-14 + 9)2 = 25
v(-5)2 = 25
v(-10) = 25
v = 25/(-10)
v = -2.5
I hope this helped! If not, I am sorry. :(
Answer:
x = 18 (Smaller number)
y = 35 (Larger number)
Step-by-step explanation:
To solve, begin by setting up a system of equations.
'x' being the smaller number, while
'y' is the larger number.
We can construct the equations:
x + y = 53
3x = y + 19
Rearrange the second equation to equal 'y':
3x - 19 = y
Plug this value of 'y' into the first equation:
x + 3x - 19 = 53
Combine like terms and simplify:
4x - 19 = 53
4x = 72
x = 18
Plug in this value for 'x' into an equation to solve for 'y':
18 + y = 53
y = 35.
Answer:
c
Step-by-step explanation:
i think is c I need help
